Resin sheet and molded body

Patent metadata

Field	Value
Publication number	US-2025368815-A1
Application number	US-202318874673-A
Country	US
Kind code	A1
Filing date	Jun 16, 2023
Priority date	Jun 17, 2022
Publication date	Dec 4, 2025
Grant date	—

Abstract

The present invention provides a resin sheet containing a chlorinated polyvinyl chloride and a dimethyltin-based compound, in which the chlorine content of the chlorinated polyvinyl chloride is 60% by mass or more, and the deflection temperature under load of the resin sheet measured in accordance with a JIS K 7191-1 A method is 80° C. or higher.

First claim

1 . A resin sheet comprising:
a chlorinated polyvinyl chloride; and a dimethyltin-based compound, wherein a chlorine content of the chlorinated polyvinyl chloride is 60% by mass or more, and a deflection temperature under load of the resin sheet measured in accordance with a JIS K 7191-1 A method is 80° C. or higher.

2 . The resin sheet according to claim 1 , further comprising:
a lubricant having a softening point of 50° 0 C. or higher.

3 . The resin sheet according to claim 2 ,
wherein the lubricant is one or two or more selected from the group consisting of an oxidized polyethylene, a fatty acid ester, and a hydroxy fatty acid.

4 . The resin sheet according to claim 1 , further comprising:
a molybdenum-based compound; and magnesium hydroxide.

5 . The resin sheet according to claim 4 ,
wherein the molybdenum-based compound is ammonium octamolybdate.

6 . The resin sheet according to claim 1 ,
wherein in the resin sheet, a ratio of an amount of the chlorinated polyvinyl chloride to a total mass of the resin sheet is 70% by mass or more.

7 . The resin sheet according to claim 2 ,
wherein in the resin sheet, a ratio of an amount of the lubricant to 100 parts by mass of an amount of the dimethyltin-based compound is 40 parts by mass to 65 parts by mass.

8 . The resin sheet according to claim 4 ,
wherein in the resin sheet, a ratio of a total amount of the molybdenum-based compound and the magnesium hydroxide to 100 parts by mass of an amount of the chlorinated polyvinyl chloride is 2.0 parts by mass to 10.0 parts by mass.

9 . The resin sheet according to claim 1 , further comprising:
at least one of the group consisting of zeolite and an antioxidant.

10 . A molded body of the resin sheet according to claim 1 .

Assignees

• Sumitomo Bakelite Co

Inventors

• Kanehara Katsuki

Classifications

• C08L2205/06

  having improved processability or containing aids for moulding methods · CPC title

• C08L2205/035

  containing four or more polymers in a blend · CPC title

• C08L2205/025

  containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure · CPC title

• C08L2201/08

  Stabilised against heat, light or radiation or oxydation · CPC title

• C08L2201/02

  Flame or fire retardant/resistant · CPC title