Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1990-12-27
1995-01-10
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
525239, 525244, C08L 3306
Patent
active
053807863
ABSTRACT:
Polyvinyl chloride-acrylate copolymers are plasticized with plasticizers to produce a composition having low hardness values. For example, Shore A values of 55 or less can be readily achieved. Such low values are often achieved by utilizing low amounts, for example less than 100 parts by weight, of the plasticizer for every 100 parts by weight of the PVC-acrylate copolymer. Low Shore A hardness values are also aided by the use of high amounts of acrylate units in the copolymer, that is amounts of at least 45 percent by weight based upon the total weight of the copolymer. The copolymer is made from a vinyl constituent which is a vinyl chloride monomer with an optional vinyl component comonomer and one or more acrylate monomers having the formula ##STR1## wherein R.sup.1 is an aliphatic, an aromatic, or combinations thereof, having from 1 to 18 carbon atoms, or a halogen derivative thereof, or hydrogen, and R.sup.2 is an aliphatic, an aromatic, an alkyl hydroxyl, or combinations thereof, having from 1 to 18 carbon atoms, or a halogen derivative thereof; or a hydrocarbyl ether such as an alkoxyalkyl, a phenoxyaryl, a phenoxyalkyl, or combinations thereof, having from 2 to 1,000 carbon atoms, or a substituted halogen, oxygen, sulfur, or nitrogen derivative thereof. In another embodiment, the polyvinyl chloride-acrylate copolymers are blended with low temperature property improving polymers which are non-liquid, high molecular weight polymers.
REFERENCES:
patent: 2956980 (1960-10-01), Law
patent: 3046237 (1962-07-01), Rosenfelder et al.
patent: 3240742 (1966-03-01), Hahn et al.
patent: 3554954 (1971-01-01), Rosis et al.
patent: 3666735 (1972-05-01), Rosts
patent: 3903198 (1975-09-01), Wei
patent: 4028329 (1977-06-01), Kahn et al.
patent: 4556694 (1985-12-01), Wallace
patent: 4727114 (1988-02-01), Chen
patent: 4822856 (1989-04-01), Moore et al.
Official Gazette 1046 TMOG-2 Sep. 4, 1984.
Greenlee William S.
Vyvoda Josef C.
Wypart Roman W.
Powell Joe A.
Sarofim N.
Schofer Joseph L.
Shunk Laura
The Geon Company
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