ACRYLIC ESTER COPOLYMER

A process based on saponification of ethylene—acrylate ester copolymers has been practiced commercially in Japan (29). The saponification naturally produces fully neutralized polymer, and it is then necessary to acidify in order to obtain a pardy neutralized, melt-processible product. Technology is described to convert the sodium ionomer produced by this process to the zinc type by soaking pellets in zinc acetate solution, followed by drying (29). [Pg.408]

Many synthetic latices exist (7,8) (see Elastomers, synthetic). They contain butadiene and styrene copolymers (elastomeric), styrene—butadiene copolymers (resinous), butadiene and acrylonitrile copolymers, butadiene with styrene and acrylonitrile, chloroprene copolymers, methacrylate and acrylate ester copolymers, vinyl acetate copolymers, vinyl and vinyUdene chloride copolymers, ethylene copolymers, fluorinated copolymers, acrylamide copolymers, styrene—acrolein copolymers, and pyrrole and pyrrole copolymers. Many of these latices also have carboxylated versions. [Pg.23]

Standard-grade PSAs are usually made from styrene-butadiene rubber (SBR), natural rubber, or blends thereof in solution. In addition to rubbers, polyacrylates, polymethylacrylates, polyfvinyl ethers), polychloroprene, and polyisobutenes are often components of the system ([198], pp. 25-39). These are often modified with phenolic resins, or resins based on rosin esters, coumarones, or hydrocarbons. Phenolic resins improve temperature resistance, solvent resistance, and cohesive strength of PSA ([196], pp. 276-278). Antioxidants and tackifiers are also essential components. Sometimes the tackifier will be a lower molecular weight component of the high polymer system. The phenolic resins may be standard resoles, alkyl phenolics, or terpene-phenolic systems ([198], pp. 25-39 and 80-81). Pressure-sensitive dispersions are normally comprised of special acrylic ester copolymers with resin modifiers. The high polymer base used determines adhesive and cohesive properties of the PSA. [Pg.933]

The isoprene units in the copolymer impart the ability to crosslink the product. Polystyrene is far too rigid to be used as an elastomer but styrene copolymers with 1,3-butadiene (SBR rubber) are quite flexible and rubbery. Polyethylene is a crystalline plastic while ethylene-propylene copolymers and terpolymers of ethylene, propylene and diene (e.g., dicyclopentadiene, hexa-1,4-diene, 2-ethylidenenorborn-5-ene) are elastomers (EPR and EPDM rubbers). Nitrile or NBR rubber is a copolymer of acrylonitrile and 1,3-butadiene. Vinylidene fluoride-chlorotrifluoroethylene and olefin-acrylic ester copolymers and 1,3-butadiene-styrene-vinyl pyridine terpolymer are examples of specialty elastomers. [Pg.20]

ASA acrylonitrile styrene acrylic ester copolymer blend... [Pg.34]

VCap alkyl(methyl)acrylate ester Copolymers contain short-chain alkyl methacrylates, such as methyl... [Pg.666]

Wide angle light scattering is used as the principal probe to examine the core-shell structure proposed for certain acrylic acid acrylate ester copolymer latexes. Additional techniques were sedimentation and photon correlation spectroscopy. [Pg.279]

Flow and fusion promoters Thixotropic agents Antiaging Antioxidants PMMA and acrylate ester copolymers, MBS Fumed silica, clays Sterically hindered phenols, sec-aromatic amines, phosphates, thioethers... [Pg.637]

The catalyzed graft copolymerization of styrene-methyl methacry-late-EASC and a-methylstyrene-methacrylonitrile-EASC onto nitrile rubber in solution is shown in Table XII. In addition, grafting has been done on ethylene-propylene copolymers, polybutadiene, acrylic ester copolymers, and other polymers containing labile hydrogen atoms. [Pg.231]

Lotryl . [Atochem N. Am.] Ethylene/ acrylic ester copolymers for films, coextrusion, gloves, sheets, coating, hot melts, compounding. [Pg.213]

Luran S. [BASF AG] Acrykxutrile-styrene-acrylic ester copolymers for inj. molding, extrusion, structural parts for outdoor use, hot water drainage pipes, pado furniture, toys. [Pg.216]

Acronal . [BASF BASF AG] Acrylic ester copolymer dispersions binders to ptq)er and board coating, binders and coating agents to prod, of materials based on leather fibers. [Pg.5]

The investigations were carried out using 2 polymers (Pol5mier 1 - redispersible powder with a film formation temperature of 5 °C, Polymer 2 - dispersion with a film formation temperature of 30 °C). Both based on styren-acrylic ester copolymer. [Pg.29]

Fig. 6.96. Structure of the acrylic ester copolymer molecule. (According to [382])...

Acryiic Resin AS. See Acrylic resin Acrylic resin. See Polyacrylic acid Acrylic sheet. See Acrylic resin Acrylic/styrene/acrylonitrile terpolymer Synonyms Acrylonitrile/styrene/acrylate Acrylonitrile-styrene-acrylic ester copolymer ASA ASA terpolymer Definition Thermoplastic blend produced by polymerization of acrylonitrile and styrene in presence of acrylic ester latex Properties Dens. 1.08 kg/l (20 C) tens. str. 50-60 MPa tens. mod. 2500 MPa better heat and It. resist, than ABS... [Pg.107]

Acrylonitrile/styrene/acrylate Acrylonitrile-styrene-acrylic ester copolymer. See Acryl ic/sty rene/acrylon itri le terpoly mer Acrylonitrile/styrene copolymer Synonyms Acrylonitrile/styrene resin ACS Definition Thermoplastic blend of acrylonitrile and styrene monomers with 45-72% ACN and 28-55%... [Pg.114]

Styrene/butadiene polymer Styrene/methyl methacrylate copolymer Styrene/a-methyl styrene resin Tall oil rosin Tallow amide Terpene resin Tetrasodium pyrophosphate Trimethylolpropane Urea-formaldehyde resin Urea-formaldehyde resin, butylated Vinyl chloride/vinyl acetate copolymer Vinyl chloride/vinylidene chloride copolymer coatings, food-contact acrylate ester copolymer Sodium borate... [Pg.4973]

More commonly, acrylic polymers have been utilized as the sole or major components of radiation-curable adhesive systems. These acrylics have included a homopolymer and many examples of copolymers. One UV-cured acrylic ester copolymer system cited was claimed to have 180° peel strength of 4.8 to 5.5 pounds/inch. Radiation-curable systems based on copolymers of vinyl acetate and 2-ethylhexyl acrylate have been reported more frequently than other compositions and sometimes have been applied by hot melt techniques. These pressure-sensitive adhesives have displayed 180° peel strengths ranging from about 1.5 to 3 pounds/inch when cured by either UV or EB radiation. Not surprisingly, solutions of acrylic polymers in acrylic and vinyl monomers have also been used as radiation-curable pressure-sensitive adhesives. [Pg.322]