Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-07-29
1994-06-07
Seccuro, Jr., Carman J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525301, 525285, 525207, C08L 3302, C08L 3308, C08L 2508, C08L 3104
Patent
active
053190270
ABSTRACT:
Polymeric compositions are disclosed containing miscible blends of copolymers, one of which is a vinyl acetate/ethylene copolymer containing about 5 to 30 weight percent ethylene and the other is a copolymer of either acrylic acid or a maleic anhydride with a comonomer selected from styrene, ethyl acrylate, n-butyl acrylate and 2-ethylhexyl acrylate. Windows of miscibility for each of the copolymer blends have been defined and the blends can be advantageously formed by polymerizing the acrylic acid copolymer in the presence of an emulsion of the vinyl acetate/ethylene copolymer in such a way that the polymerization takes place in the suspended vinyl acetate/ethylene copolymer rather than in the aqueous phase.
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Bott Richard H.
Cordeiro Cajetan F.
Kuphal Jeffrey A.
Lee Hsueh-Chi
Robeson Lloyd M.
Air Products and Chemicals Inc.
Gourley Keith D.
Marsh William F.
Seccuro, Jr. Carman J.
Simmons James C.
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