POLYACRYLIC IMIDE

With the exception of both the EVOH grades, the remaining four barrier resins were orientable in the solid state. Generally, amorphous resins SELAR PA 3426 and polyacrylic-imide XHTA-50A were easier to orient than the semicrystalline resins, VDC copolymer and aromatic nylon MXD-6. In the case of both EVAL EP-E105 and SOARNOL D resins, all attempts to orient from the solid state were unsuccessful. 

With the growing demand for coextruded products, barrier plastics have shown significant growth in the last several years. Historically, the high barrier resins market has been dominated by three leading materials — vinylidene chloride (VDC) copolymers, ethylene vinyl alcohol (EVOH) copolymers, and nitrile resins. Since 1985, however, there has been a lot of interest worldwide in the development of moderate to intermediate barrier resins, as apparent from the introduction of a number of such resins, notably, aromatic nylon MXD-6 from Mitsubishi Gas Chemical Company, amorphous nylons SELAR PA by Du Pont and NovamidX21 by Mitsubishi Chemical Industries, polyacrylic-imide copolymer EXL (introduced earlier as XHTA) by Rohm and Haas and copolyester B010 by Mitsui/Owens-Illinois. 

Materials The competitive oxygen barrier resins investigated include Dow Chemical Company s vinylidene chloride/vinyl chloride (VDC) copolymer (experimental grade XU 32009.02), Mitsubishi Gas Chemical Company s aromatic nylon MXD-6, Du Pont s amorphous nylon SELAR PA 3426, Rohm Haas s polyacrylic-imide XHTA-50A and two EVOH resins — Kuraray s EVAL EP-E105 (44 mole% ethylene content) and Nippon Gohsei s SOARNOL D (29 mole% ethylene content). ... 

Paraloid HT-510 Polyacrylic-imide modifier for PVC bottles Rohm and Haas... 

Plastics for which the adhesion of coatings may be improved by plasma pre-treatment are reported to be polyethylene, polypropylene, polycarbonates, polyacetals, polyaromatic esters, polyimides, polyamides, polyphenylene ether, polyacrylates, acetal homopolymer, and poly(ether imide). 

An alternative method to obtain a negative inside Donnan potential across the vesicular membrane involves preparation of the vesicles as in the first case (i.e., in glucose solution) and the addition of polyethylene imide (PEI+) instead of sodium polyacrylate after incubation with alamethicin. The polyethylene imide concentrations, as well as the polypeptide to lipid ratio, were approximately equivalent to the polyacrylate. 

Kamax Polyacrylates, polymethacrylates, and imidized poly(methyl methacrylate)s Rohm and Haas/Ato Haas... 

Water-soluble resins Any of several resin types that are produced by polymerization reactions in which the chain growth results from breaking of ring structure or double bonds of the monomers. Examples are alkyl- and hydroxyalkyl cellulose derivatives, carboxymethyl cellulose, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid, polyacrylamide, polyethylene oxide, and polyethylene-imide. Tracton AA (ed) (2005) Coatings technology handbook. Taylor and Francis Inc., New York. 

DPC has in recent years been applied to studies on a range of photopolymers including DF 2000 photopolymer [5], cinnamoylphenyl methacrylate-glycidyl methacrylate copolymer [6], multiethylene glycol dimethacrylate [7], Ebecryl 270 (aliphatic urethane diacrylate) 1,6-hexanediol diacrylate (Darocur 1173 2-hydroxy-2-methyl-phenylpropan-l-one) [8], epoxy acrylates [9], epoxy vinyl ether formulations [10], polyacrylates, maleimides, and vinyl ethers [11], hydroxylated poly(imides) [12], and polystyrene-poly(n-butylacrylate) copolymers [13]. 

Acrylic Polyacrylate Polymethyl methaorylate Polydihydroxymethyl qrclohexyl terephthalate Polyamide imide Polyimides... 

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