Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Vinyl acetate-acrylate-maleate copolymers

Whilst vinyl acetate is reluctant to copolymerise it is in fact usually used today in copolymers. Two of particular interest to the plastics industry are ethylene-vinyl acetate (Chapter 11) and vinyl chloride-vinyl acetate copolymers (Chapter 12). In surface coatings internal plasticisation to bring the Tg to below ambient temperatures and thus facilitate film forming is achieved by the use of ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate and dialkyl maleates and fumarates. [Pg.397]

Vinyl acetate polymers are extensively used in emulsion paints, as adhesives for textiles, paper, and wood, as a sizing material, and as a permanent starch. A number of commercial grades are available which differ in molecular weight and in the nature of comonomers (e.g., acrylate, maleate, fumarate) which are often used. Two vinyl acetate copolymers of particular interest to the plastics industry are EVA and vinyl chloride-vinyl acetate copolymers. [Pg.431]

Poly(vinyl ester) dispersions are quantitatively more important than solid resins. Homopolymer and copolymer dispersions are used for binders in emulsion (dispersion) paints, plastic-bonded plasters, and water-thinnable adhesives. Poly(vinyl acetate) dispersions are less important than vinyl acetate copolymer dispersions. The most important comonomers of vinyl acetate are vinyl laurate, dibutyl maleate, Versatic Acid esters (VeoVa, Shell), ethylene, vinyl chloride, and butyl acrylate. Poly(vinyl propionate) and copolymers of vinyl propionate with butyl acrylate, styrene, or vinyl chloride are also marketed and used as dispersions. [Pg.32]

Vinyl acetate copolymers are used worldwide in polymer dispersions. Copolymers with dibutyl maleate are particularly elastic, while copolymers with vinyl esters of Versatic Acid have particularly good weather resistance for shade formulations. Copolymers with acrylate esters and vinyl acetate-ethylene-vinyl chloride terpoly-mers with a good cost - performance ratio are also important. [Pg.126]

Polyvinyl acetate Vinyl acetate copolymers PVAC -CH2-CH- 6-CO-CH3 VAC/maleate VAC/acrylate VAC/ethylene Vinylite... [Pg.20]

Vinyl acetate, inhibited. See Vinyl acetate Vinyl acetate/isobutyl maleate/vinyl neodecanoate copolymer. See VA/isobutyl maleate/vinyl neodecanoate copolymer Vinyl acetate monomer. See Vinyl acetate Vinyl acetate polymer. See Polyvinyl acetate Vinyl acetate, polymer with n-butyl acrylate. [Pg.4676]

VA/crotonates/vinyl neodecanoate copolymer VA/crotonates/vinyl propionate copolymer VA/isobutyl maleate/vinyl neodecanoate copolymer Vinyl acetate Vinyl caprolactam/PVP/dimethylaminoethyl methacrylate copolymer film-former, cosmetics moisturizers Diglycol/CHDM/isophthalates/SIP copolymer film-former, cream rinses Polyquatemium-2 film-former, creams Acetylated lanolin Nitrocellulose film-former, creams/lotions Arachidyl behenate PVM/MA copolymer, isopropyl ester film-former, detergents PVM/MA copolymer film-former, dish detergents Hydrolyzed collagen film-former, disposable gloves Ethylene/methyl acrylate copolymer film-former, dusting powders Rice (Oryza sativa) starch film-former, dyes PVP/VA copolymer film-former, elastomers Dibutyl phthalate... [Pg.5251]

Copolymer from methyl methacrylate and butyl acrylate Copolymer from methyl methacrylate, butyl acrylate, diallyl maleate, and trimethylol propane triacrylate Methyl methacrylate-ethyl acrylate copolymer Methyl methacrylate-methyl acrylate copolymer Methyl methacrylate-co-A -phenylmaleimide copolymer Copolymer from methyl methacrylate and a-methyl styrene Methyl methacrylate-vinyl acetate copolymer Copolymer of methyl methacrylate, vinyl acetate, and acrylic acid... [Pg.2162]

As mentioned previously, the Alfrey Priee Q and e values for vinyl acetate are 0.026 and —0.22, respectively [226]. Thus vinyl acetate is rather sluggish in its free-radical copolymerization, with most monomers, particularly olefinic monomers, bearing electron-donating subtitutents. The copolymerization reactivity ratios reflect the reluctance of vinyl acetate to enter into copolymerization with other monomers [270]. Nevertheless, vinyl acetate copolymers with a great many electron-rich as well as electron-poor olefins have been prepared. Especially significant from a commercial point of view are copolymers with ethylene, vinyl chloride, acrylates, methacrylates, fumarates, and maleates. Often, mixtures of three and more comonomers are used in these copolymerizations. [Pg.190]

Copolymers of vinyl chloride are used both as solid resins, for example, in solvent adhesives (vinyl chloride-vinyl acetate copolymers), and as additives in plastisol adhesives, but especially as synthetic resin emulsions for heat-sealing adhesives. Important copolymers are those of vinyl chloride with vinyl acetate, acrylates, or maleates, as well as copolymers of vinylidene dichloride with acrylates or acrylonitrile. [Pg.12]

Although they lack commercial importance, many other poly(vinyl acetal)s have been synthesized. These include acetals made from vinyl acetate copolymerized with ethylene (43—46), propjiene (47), isobutjiene (47), acrylonitrile (48), acrolein (49), acrylates (50,47), aHyl ether (51), divinyl ether (52), maleates (53,54), vinyl chloride (55), diaHyl phthalate (56), and starch (graft copolymer) (47). [Pg.450]

Specialty waxes include polar waxes for more polar adhesive systems. Examples would be castor wax (triglyceride of 12-hydroxy stearic acid) or Paracin wax N- 2 hydroxy ethyl)-12-hydroxy stearamide) which are used in polyester, polyamide, or with high VA EVA copolymer-based systems. Other common polar waxes are maleated polyethylenes, which are used to improve the specific adhesion of polyethylene-based adhesives, and low molecular weight ethylene copolymers with vinyl acetate or acrylic acid, which are used to improve low temperature adhesion. High melting point isotactic polypropylene wax (7 155°C) and highly refined paraffin wax (7,n 83°C) are used where maximum heat resistance is critical. Needless to say, these specialty waxes also command a premium price, ranging from 2 to 5 times that of conventional paraffin wax. [Pg.727]

Similar results are obtained with copolymers of vinyl acetate, acrylates, and maleates. The addition of small amounts of liquid plasticizers improves the surface gloss and smoothness of the films. The brittle point is excellent, and it is possible to get values down to — 62°C. with 40 to 45% of the plasticizer combination. [Pg.98]

ABA ABS ABS-PC ABS-PVC ACM ACS AES AMMA AN APET APP ASA BR BS CA CAB CAP CN CP CPE CPET CPP CPVC CR CTA DAM DAP DMT ECTFE EEA EMA EMAA EMAC EMPP EnBA EP EPM ESI EVA(C) EVOH FEP HDI HDPE HIPS HMDI IPI LDPE LLDPE MBS Acrylonitrile-butadiene-acrylate Acrylonitrile-butadiene-styrene copolymer Acrylonitrile-butadiene-styrene-polycarbonate alloy Acrylonitrile-butadiene-styrene-poly(vinyl chloride) alloy Acrylic acid ester rubber Acrylonitrile-chlorinated pe-styrene Acrylonitrile-ethylene-propylene-styrene Acrylonitrile-methyl methacrylate Acrylonitrile Amorphous polyethylene terephthalate Atactic polypropylene Acrylic-styrene-acrylonitrile Butadiene rubber Butadiene styrene rubber Cellulose acetate Cellulose acetate-butyrate Cellulose acetate-propionate Cellulose nitrate Cellulose propionate Chlorinated polyethylene Crystalline polyethylene terephthalate Cast polypropylene Chlorinated polyvinyl chloride Chloroprene rubber Cellulose triacetate Diallyl maleate Diallyl phthalate Terephthalic acid, dimethyl ester Ethylene-chlorotrifluoroethylene copolymer Ethylene-ethyl acrylate Ethylene-methyl acrylate Ethylene methacrylic acid Ethylene-methyl acrylate copolymer Elastomer modified polypropylene Ethylene normal butyl acrylate Epoxy resin, also ethylene-propylene Ethylene-propylene rubber Ethylene-styrene copolymers Polyethylene-vinyl acetate Polyethylene-vinyl alcohol copolymers Fluorinated ethylene-propylene copolymers Hexamethylene diisocyanate High-density polyethylene High-impact polystyrene Diisocyanato dicyclohexylmethane Isophorone diisocyanate Low-density polyethylene Linear low-density polyethylene Methacrylate-butadiene-styrene... [Pg.958]

Copolymerization. Vinyl chloride can be copolymerized with a variety of monomers. Vinyl acetate [9003-22-9], the most important commercial comonomer, is used to reduce crystallinity, which aids fusion and allows lower processing temperatures. Copolymers are used in flooring and coatings. This copolymer sometimes contains maleic acid or vinyl alcohol (hydrolyzed from the poly(vinyl acetate)) to improve the coating s adhesion to other materials, including metals. Copolymers with vinylidene chloride are used as barrier films and coatings. Copolymers of vinyl chloride with maleates or fumerates are used to raise heat deflection temperature. Copolymers of vinyl chloride with acrylic esters in latex form are used as film formers in paint, nonwoven fabric binders, adhesives, and coatings. Copolymers with olefins improve thermal stability and melt flow, but at some loss of heat-deflection temperature (100). Copolymerization parameters are listed in Table 5. [Pg.502]

They include vinyl acetate homopolymers and all copolymers in which vinyl acetate is the major constituent (50% or greater). The major PVAc copolymers are vinyl acetate-ethylene (VAE) and vinyl acetate-acrylic ester (vinyl acrylic). Vinyl acetate-versatic acid (vinyl versatate) and vinyl acetate- maleate are major PVAc copolymer emulsions used. [Pg.61]

VA-088. See 2,2 -Azobis (2-methylpropionamide) dihydrate VA-545. See 2,2 -Azobis (2-methyl-N-phenylpropionamidine) dihydrochloride VA-546. See 2,2 -Azobis [N-(4-chlorophenyl)-2-methylpropionamidine] dihydrochloride VA/butyl maleate/isobomyl acrylate copolymer CAS 136392-68-2 Synonyms Vinyl acetate/butyl maleate/isobomyl acrylate copolymer Definition Copolymer of vinyl acetate, butyl maleate, and isobornyl acrylate monomers Uses Film-former in cosmetics hair fixative Trade Name Synonyms Advantage Plus [ISP http //www.ispcorp. com]... [Pg.4654]

Vinyl acetate/butyl maleate/isobomyl acrylate copolymer. See VA/butyl maleate/isobomyl acrylate copolymer... [Pg.4675]

Acrylates/hydroxyesters acrylates copolymer Acrylates/PVP copolymer t-Butylacrylate/ethylacrylate/methacrylic acid copolymer Isobutylene/MA copolymer Methacrylic acid copolymer Octylacrylamide/acrylates/butylaminoethyl methacrylate copolymer Polymethacrylamidopropyl trimonium chloride Polyquaternium-29 PVM/MA copolymer, ethyl ester PVP PVP/d i methylam i noethyl methacrylate copolymer Sodium p-styrenesulfonate VA/butyl maleate/isobornyl acrylate copolymer Vinyl acetate/crotonic acid copolymer Vinyl... [Pg.5259]

In 2003 Dow introduced three classes of compatibiliser, i.e., maleated polyolefins, ethylene-vinyl acetate and ethylene-ethyl acrylate copolymers, all imder the Amplify name. They were intended to improve the impact and viscosity characteristics of engineering thermoplastics and polyolefins for use in domestic appliance and automotive components, as well as for coatings and adhesives. [Pg.103]

Paints Vinyl acetate/dibutyl maleate copolymers, pure acrylics, styrene/acrylic copolymers, vinyl acetate/butyl acrylate copolymers, slyrene/acrylate copolymers... [Pg.91]

As mentioned in the previous section, it is common practice to plasticize poly(vinyl acetate) intended for surface coatings by such materials as dibutyl phthalate, A limitation of external plasticizers of this kind is that they may eventually be lost by evaporation or by migration into the substrate, leaving an imperfect and brittle film. This limitation may be overcome by the use of copolymers and these are now widely used in surface coatings and other applications. Comonomers which may be employed for this purpose include alkyl (commonly 2-ethylhexyl) acrylates, fumarates and maleates. Typically, the copolymers contain 15—20% by weight of such comonomers. These... [Pg.108]

The early copolymers of vinyl acetate with dibutyl maleate or acrylate esters offered distinct advantages over the homopolymer in their ability to adhere to a vast number of difficult-to-bond surfaces. However, they also had disadvantages, e.g., poor heat resistance, relatively low strength, rather slow setting speed, and comparatively poor machinability. The introduction of vinyl acetate-ethylene copolymers changed this picture considerably. This class of emulsion had all the benefits of homopolymers in strength, machinability and heat resistance in addition to better adhesion characteristics than those of the ester copolymers. [Pg.385]

VAE (vinyl acetate-ethylene) emulsions do not require as much plasticizer to obtain a strong bond to PVC as do vinyl acetate-dibutyl maleate and vinyl acetate-acrylate (Fig. 3). Importantly, these copolymers do not soften nearly as much as the other copolymers when plasticizer is added. This means that as laminations of films to cellulosic substrates age, the bond made by the VAE will not lose its cohesive strength and weaken (Fig. 4). [Pg.386]

Maleate esters such as dimethyl maleate, diethyl maleate and dibutyl maleate are extensively used in the production of latex emulsion polymers, thermoplastic and thermosetting plastics. Dimethyl maleate has found use in applications where improvement in hardness and toughness of polymer films are desired. This includes, in particular, the improvement of anti-blocking properties of copolymers of vinyl acetate with dimethyl maleate. It is also used as an internal modifier to increase the glass transition temperature of styrene or vinyl chloride polymer. The intermediate in esterification of maleic acid with methanol, monomethyl maleate provides plastsizing effect, as well as promotion of improved polymer adhesion due to the carboxylic group. It can be copolymerized with a variety of vinyl and acrylic monomers to provide coatings with improved stiffness and adhesion and reduced tackiness or tendency to block. Monoesters of maleates are used to provide carboxylic acid functionality in emulsions and water-soluble polymers. [Pg.114]

Vinyl resins - In the coatings industry, vinyl resins usually refer to either poly(vinyl chloride) (PVC) or poly(vinyl acetate) (PVAc) which is widely used in interior and exterior latex paints. Produced usually by emulsion polymerization, a PVAc homopolymer is too hard to allow its colloidal latex particles to coalesce well into a continuous film at ambient temperatures. Most PVAc emulsions used in the paint industry are copolymers with a plasticizing monomer such as dibutyl maleate, 2-ethyhexyl acrylate, n-butyl acrylate, dibutyl fumarate, isodecyl acrylate, or ethyl acrylate. By polymerizing under pressure, copolymers of vinyl acetate and ethylene are also produced for latex paints. External plasticizers such as dibutyl phthalate are used as well. All these methods not only soften the polymer to allow the latex particles to coalesce into a continuous film, but also impart the film flexiblity needed in exterior house paints. [Pg.115]

Disponil FES 32 IS emulsifier, vinyl acetate-dibutyl maleate copolymers Disponil MGS 65 IS emulsifier, vinyl acrylate Disponil AEP 5300... [Pg.2710]


See other pages where Vinyl acetate-acrylate-maleate copolymers is mentioned: [Pg.19]    [Pg.277]    [Pg.651]    [Pg.463]    [Pg.463]    [Pg.315]    [Pg.333]    [Pg.8863]    [Pg.385]    [Pg.124]   
See also in sourсe #XX -- [ Pg.90 ]




SEARCH



Acetal copolymers

Acetate copolymers

Acrylic copolymers

Copolymer acrylate

Maleated Maleation

Maleation

© 2024 chempedia.info