Epoxy-g-acrylic copolymer

Water Dispersible Epoxy-g-Acrylic Copolymer for Container Coating... 

Ill) Epoxy functionalities are not essential for grafting. For a graft copolymer made by the reaction of epoxy with carboxyl functionalities, the presence of epoxy functionalities is essential. Since this approach requires carbon-carbon bond formation, ester linkages are not necessary. Therefore epoxy functionalities can be capped with phenol or benzoic acid, etc., or bisphenol-A terminated epoxy resin can be prepared followed by grafting with acid containing monomers, and resultant epoxy-g-acrylic copolymer can be prepared. 

The epoxy-g-acrylic copolymer is an excellent polymeric emulsifier for emulsion polymerization. 

Sockets for transtibial amputees were originally carved from wooden blocks. However, very few prosthetists use this medium today, and exceedingly few amputees request wooden sockets. Most transtibial sockets are fabricated using thermoplastics (e.g., polypropylene, copolymer) or laminated resins (e.g, acrylic, epoxy, polyester). 

Thermosetting acrylic copolymers containing epoxy groups are usually cross-linked by poly functional amines, e.g. ... 

Oil-base (including oil-modified alkyd resin) paint films should not be used in alkaline environments as the paint will deteriorate owing to saponification alkali-resistant coatings are provided by some cellulose ethers, e.g. ethyl cellulose, certain polyurethane, chlorinated rubber, epoxy, p.v.c./ p.v.a. copolymer, or acrylic-resin-based paints. In particular, aluminium and its alloys should be protected by alkali-resistant coatings owing to the detrimental effects of alkali on these metals. 

Schafffing, O.G. (1976) Composition comprising epoxy resin, copolymer of butadiene and acrylic acid, curing agent... 

The third type of composition is exemplified acrylate- and methacrylate-ester derivatives of epoxy resins combined with a photoinitiator 1. Epo prepolymers (e. g., glycidyl methacrylate-allyl glycidyl ether copolymers or Ciba ECN 1299) combined with a photosensitive aryldiazonium compound (e.g.,... 

For the outer-shell compositions, the choice of a monomer alters the reactive functional group(s) on the surface of the particle (e.g., epoxy, carboxy, mercaptan, etc.). Such groups will enable the toughener particles to compata-bilize with, and possibly chemically bond with, the matrix resin. Thus for the outer shell, methyl methacrylate (M) and ethyl acrylate (E) were copolymer-... 

The third type of composition is exemplified by acrylate- and methacrylate-ester derivatives of epoxy resins combined with a photoinitiator 1. Epoxy prepolymers (e. g., glycidyl methacrylate-allyl glycidyl ether copolymers or Ciba ECN 1299) combined with a photosensitive aryldiazonium compound (e.g., -nitrobenzenediazonium hexaflourophosphate) (38,39) 2. Epoxy prepolymers (e.g., a diglycidyl ether of disphenol A-(3,4-epoxycyclohexyl)-methyl-3,4-epoxycyclohex-anecarboxylate-alkyl glycidyl ether mixture) combined with a photosensitive aryldiazonium compound (e.g., -chlorobenzenediazonium hexaflourophosphate) and l-methyl-2-pyrrolidone gelation inhibitor (40) ... 

The utility of polyaniline in corrosion resistant coatings has been noted [McAndrew et al., 1996]. The addition of polyaniline to acid containing polymers e.g., polyamic acid precursor of poly-imides, styrene-acrylic acid copolymers) allowed for polymeric doping and intermediate corrosion protection of the blends compared to the constituents. Epoxy addition and diisocyante terminated... 

Polyacrylates as binders consist of copolymers of acrylate and methacrylate esters. Other unsaturated monomers (e.g., styrene and vinyltoluene) may also be incorporated, but usually to a lesser extent. Copolymers formed exclusively from acrylates and/or methacrylates are termed straight acrylics. The comonomers differ as regards the alcohol residues of the ester group, which also allow incorporation of additional functional groups. Choice of suitable monomers allows wide variation of the physical and chemical properties of the resulting polymer. Hydrophilicity, hydrophobic-ity, acid base properties as well as can be adjusted resins containing hydroxyl, amine, epoxy, or isocyanate groups can also be produced. 

Therefore, once the type of modifier is selected, e.g. a statistical copolymer of acrylonitrile and butadiene, its miscibility with the monomers may be varied significantly by changing the nature of end-groups, the fraction of both comonomers in the copolymer, and the molar mass distribution. The same trends have been observed with rubbers based on n-butyl acrylate [73] or dimethylsiloxane [74]. The introduction of acrylonitrile units, polycaprolactone blocks [75], or phenyl groups in the modifiers increases the polarity and the initial miscibility in polar monomers like epoxy resins or bismaleimides [76]. 

Chem. Descrip. Glycerin-1-allylether CAS 123-34-2 EINECS/ELINCS 204-6204 Uses Can be polymerized into polyesters, polyurethanes, polyacetals, and epoxy resins (hydroxyl group) or with acrylates, methacrylates, or styrene (ilyl group) for prod, of PL) rubber and foam printed circuit boards unsat. polyesters used for radiation-resist, coatings copolymers as dispersants for pigments or as corrosion inhibitors Properties Colorless to yish. vise, liq., perceptible odor sol. in water, ethanol, and many org. soivs. dens. 1.07 g/cc vapor pressure 0.004 mbar (20 C) m.p. < C b.p. 245 C (decomp.) flash pt. 135 C pH 7 (5% aq.) 9 /o assay... 

The use of synthetic adhesives in the past twenty-five years (1) has grown/ particularly the use of eight classes of polymers polyvinyl acetate/ polyolefins/ styrenic block copolymerS/ acrylicS/ cyanoacrylates/ anaerobicS/ polyurethanes/ and epoxy resins. Some of these polymers are Still in high demand as specialty adhesives (2). During the last several yearS/ however / other polymers have been added to this list/ e.g. / polyamides/ polyimideS/ and polyesters. Today/ synthetic adhesives account for 75% of the adhesives produced and 85% of the sales/ while the market share of natural products has steadily declined. 

Phenylene oxide-based resins (Noryl ) epoxy, polyisocyanate, polyvinyl butyral, nitrile rubber, neoprene rubber, polyurethane rubber, polyvinyUdene chloride, and acrylic. Polyethylene-nitrile rubber, polyisobutylene rubber, flexible epoxy, nitrile-phenolic, and water-based (emulsion) adhesives. Polystyrene for these foams (expanded polystyrene (EPS)), aromatic solvent adhesives (e.g., toluol) can cause collapse of the foam cell walls. For this reason, it is advisable to use either 100% solids adhesives or water-based adhesives based on SBR or polyvinyl acetate. Specific adhesives recommended include urea-formaldehyde, epoxy, polyester-isocyanate, polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, and reclaim rubber. Polystyrene foam can be bonded satisfactorily with any of the following general adhesive types ... 

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