Title:
PROCESSING AID FOR VINYL CHLORIDE RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/070505
Kind Code:
A1
Abstract:
A processing aid for a vinyl chloride resin composition according to one embodiment of the present invention contains a first polymer and a second polymer. The first polymer has a weight-average molecular weight of 600,000-4,000,000 and contains 60-100 wt% of an alkyl methacrylate. The second polymer has a weight-average molecular weight of 10,000-400,000 and contains 30-90 wt% of an aromatic vinyl compound. The proportion which the first polymer constitutes is 20-90 wt% and the proportion which the second polymer constitutes is 10-80 wt%. If the processing aid comprises 100 wt%, the proportion which the aromatic vinyl compound constitutes is at least 20 wt%.
Inventors:
SATO MASAYA
Application Number:
PCT/JP2021/020304
Publication Date:
April 07, 2022
Filing Date:
May 27, 2021
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08L25/04; C08L25/12; C08L27/06; C08L33/04
Domestic Patent References:
| WO2016195013A1 | 2016-12-08 | |||
| WO2016068239A1 | 2016-05-06 |
Foreign References:
| JP2001031826A | 2001-02-06 |
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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