Blends of high nitrile resins and hydrophobic nylons
AssigneeThe Standard Oil Company
InventorsWayne T. Wiggins, Gerald P. Coffey
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Abstract
Impact resistant polymeric compositions are composed of a blend of a high nitrile resin and a hydrophobic nylon. The high nitrile resins useful in this invention are those produced by polymerizing a major proportion of a monounsaturated nitrile, e.g. acrylonitrile, and a minor proportion of another monovinyl monomer component, e.g. methyl acrylate, copolymerizable therewith optionally in the presence of a preformed rubber. The hydrophobic nylons useful in this invention comprise nylon-11, nylon-12 anc cyclic nylons.
Claims14
A polymer composition comprising a blend of (i) a polymer produced by polymerizing a major proportion of a monounsaturated nitrile, a minor proportion of another monovinyl monomer copolymerizable therewith optionally in the presence of a diene rubber, and (ii) a polyamide selected from the group consisting of nylon-11, nylon-12 and cyclic nylons wherein said cyclic nylon is prepared by reacting a dicarboxylic acid or acid chloride thereof with a diamine where at least one of said reactants is a cyclic compound, wherein (i) is a high nitrile copolymer prepared by the polymerization of 100 parts by weight of (a) from 60% to 90% by weight of at least one nitrile having the structure:
- ##STR15## wherein R is hydrogen, a lower alkyl group having from 1 to 4 carbon atoms, or a halogen, and (B) from 10% to 40% by weight based on the combined weights of (A) and (B) of at least one member selected from the group consisting of (1) an ester having the structure:
- ##STR16## wherein R is hydrogen, an alkyl group having from 1 to 30 carbon atoms, or a halogen, and R.sub.2 is an alkyl group having from 1 to 6 carbon atoms, (2) an alpha-olefin having the structure:
- ##STR17## wherein R.sub.3 and R.sub.4 are alkyl groups having from 1 to 7 carbon atoms, (3) a vinyl ether selected from the group consisting of methyl vinyl ether, ethyl vinyl ether, the propyl vinyl ethers, and the butyl vinyl ethers, (4) vinyl acetate, (5) styrene, and (6) indene, in the presence of from 0 to 40 parts by weight of (C) a rubbery polymer of a conjugated diene monomer selected from the group consisting of butadiene and isoprene and a comonomer selected from the group consisting of styrene, a monomer having the structure:
- ##STR18## wherein R has the foregoing designation, and an ester having the structure:
- ##STR19## wherein R.sub.1 and R.sub.2 have the foregoing respective designations, said rubbery polymer containing from 50% to 100% by weight of polymerized conjugated diene and from 0% to 40% by weight of comonomer.
Dependencies are inferred from the claim text.