Softening agent
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Jun 26, 2003
app pub date -
Nov 1, 2002
filing date -
Nov 5, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An object of the present invention is to provide a softening agent for a thermoplastic resin that gives flexibility, impact-resistance, etc. to a thermoplastic resin. The present invention provides the following (1) to (3) etc. (1) A softening agent for a thermoplastic resin comprising polyvinyl ether. (2) The softening agent according to the above (1), wherein the polyvinyl ether is polyvinyl ether having a structural unit represented by the general formula (I): 1 (wherein R.sup.1 is a hydrogen atom or lower alkyl, and R.sup.2 is substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl). (3) The softening agent according to the above (1) or (2), wherein the weight-average molecular weight of the polyvinyl ether is 1,000 to 3,000,000.
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