Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1974-05-20
1977-01-04
Levin, Stanford M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526222, C08F22014
Patent
active
040014843
ABSTRACT:
The present disclosure concerns a composition comprising a copolymer product of a vinyl aromatic monomer selected from the group consisting of .alpha.-methylstyrene, 2-methylstyrene and tertiary butylstyrene, methyl methacrylate, and acrylonitrile or methacrylonitrile monomers which are polymerized at regulated conditions to produce a terpolymer having a disclosed weight ratio of vinyl aromatic to methyl methacrylate to acrylonitrile or methacrylonitrile. The present composition is thought to be useful for applications in which clear solvent resistant polymeric compositions are required which also have high heat resistance evidenced by high heat deflection temperatures. Such composition possesses unique properties which can be exploited through recognized molding procedures to produce many household appliances which must be subjected to high temperatures, possess substantial clarity and reasonable chemical inertness.
REFERENCES:
patent: 2851447 (1958-09-01), Wesp et al.
patent: 3792125 (1974-02-01), Wefer
Abrams Alan M.
Levin Stanford M.
The Richardson Company
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