Vinyl chloride resin composition for powder molding, and vinyl chloride resin molded body and laminate

Patent metadata

Field	Value
Publication number	US-10829618-B2
Application number	US-201414911763-A
Country	US
Kind code	B2
Filing date	Sep 1, 2014
Priority date	Sep 18, 2013
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A vinyl chloride resin composition for powder molding includes: 100 parts by mass of (a) vinyl chloride resin particles; 0.5 parts by mass to 7 parts by mass of (b) perchloric acid-treated hydrotalcite; and 0.05 parts by mass to 5 parts by mass of (c) metal salt of fatty acid.

First claim

The invention claimed is:

1. A vinyl chloride resin composition for powder molding, comprising:
100 parts by mass of (a) vinyl chloride resin particles;
1 part by mass to 3.5 parts by mass of (b) perchloric acid-treated hydrotalcite wherein an anion carbonate in an untreated hydrotalcite is substituted with an anion perchlorate in said perchloric acid-treated hydrotalcite in a ratio of 85 mol % or more and 95 mol % or less;
0.05 parts by mass to 5 parts by mass of (c) fatty acid zinc salt; and
90 parts by mass to 200 parts by mass of (d) plasticizer with respect to 100 parts by mass of (a) the vinyl chloride resin particles,
wherein
(d) the plasticizer is a combination of trimellitate plasticizers and epoxidized plant oils,
a weight ratio of the trimellitate plasticizers and the epoxidized plant oils ranges from 15:1 to 25:1, and
(d) the plasticizer excludes sebacic acid derivatives.

2. The vinyl chloride resin composition for powder molding as set forth in claim 1 , for use in powder slush molding.

3. A vinyl chloride resin molded article obtained by subjecting, to powder slush molding, the vinyl chloride resin composition for powder molding as set forth in claim 1 .

4. The vinyl chloride resin molded article as set forth in claim 3 , for use as an automobile instrument panel skin.

5. A laminate in which a polyurethane foam molded article and the vinyl chloride resin molded article as set forth in claim 3 are stacked.

6. The laminate as set forth in claim 5 , for use in an automobile instrument panel.

Assignees

• Zeon Corp

Inventors

• Iwabuchi Satoshi

Classifications

• B29C41/18

  Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off · CPC title

• B32B2264/0242

  Vinyl halide, e.g. PVC, PVDC, PVF or PVDF (co)polymers · CPC title

• B32B2307/30

  having particular thermal properties · CPC title

• B32B2307/738

  Thermoformability · CPC title

• B32B2264/00

  Composition or properties of particles which form a particulate layer or are present as additives · CPC title