VINYL CHLORIDE RESIN COMPOSITION, VINYL CHLORIDE RESIN MOLDED PRODUCT, AND LAMINATE

• US 20160288463A1
• Filed: 12/04/2014
• Published: 10/06/2016
• Est. Priority Date: 12/10/2013
• Status: Active Grant

• Current Assignee: ZEON Corporation
• Original Assignee: ZEON Corporation
• Inventors: FUJIWARA, Takanori
• Granted Patent: US 10,800,146 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B32B 2266/0278 Polyurethane
• CPC Class Codes: B32B 2307/406 Bright, glossy, shiny surface
• CPC Class Codes: B32B 2307/50 having particular mechanical properties
• CPC Class Codes: B32B 2307/546 Flexural strength; Flexion stiffness
• CPC Class Codes: B32B 2605/003 Interior finishings
• CPC Class Codes: B32B 27/065 of foam
• CPC Class Codes: B32B 27/304 comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
• CPC Class Codes: B32B 27/40 comprising polyurethanes
• CPC Class Codes: B60R 13/0256 Dashboard liners
• CPC Class Codes: C08K 5/10 Esters; Ether-esters
• CPC Class Codes: C08K 5/103 with polyalcohols
• CPC Class Codes: C08K 5/12 of cyclic polycarboxylic acids
• CPC Class Codes: C08L 2205/025 containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
• CPC Class Codes: C08L 27/06 Homopolymers or copolymers of vinyl chloride

Abstract

Provided is a vinyl chloride resin composition that can provide a molded product having superior flexibility at low temperatures. The vinyl chloride resin composition includes (a) a vinyl chloride resin and (b) a diester plasticizer formed from a compound represented by formula (1) shown below. In formula (1), R¹ and R³ are monovalent hydrocarbon groups that may be the same or different and R² is a divalent hydrocarbon group. Moreover, (a) the vinyl chloride resin includes (x) a base vinyl chloride resin in an amount of from 70 mass % to 100 mass % and (y) vinyl chloride resin fine particles in an amount of from 0 mass % to 30 mass %.

Claims

1. A vinyl chloride resin composition comprising:

(a) a vinyl chloride resin; and

(b) a diester plasticizer formed from a compound represented by formula (1) shown below

2. The vinyl chloride resin composition of claim 1, wherein

an amount of (b) the diester plasticizer is from 5 parts by mass to 200 parts by mass relative to 100 parts by mass of (a) the vinyl chloride resin.

3. The vinyl chloride resin composition of claim 1, further comprising

(c) a trimellitate plasticizer.

4. The vinyl chloride resin composition of claim 3, wherein

a total amount of (b) the diester plasticizer and (c) the trimellitate plasticizer is from 5 parts by mass to 200 parts by mass relative to 100 parts by mass of (a) the vinyl chloride resin.

5. The vinyl chloride resin composition of claim 3, wherein

a blending ratio of (b) the diester plasticizer relative to (c) the trimellitate plasticizer, expressed as a mass ratio, is from 1/99 to 99/1.

6. The vinyl chloride resin composition of claim 1, wherein

R¹ and R³ in formula (1) are monovalent aliphatic hydrocarbon groups having a carbon number of 2-24 that may be the same or different, and

R² in formula (1) is a divalent aliphatic hydrocarbon group having a carbon number of 1-14.

7. The vinyl chloride resin composition of claim 1, wherein

R¹-R³ in formula (1) each have a straight chain ratio of at least 90 mol %.

8. The vinyl chloride resin composition of claim 1, wherein

(x) the base vinyl chloride resin is vinyl chloride resin particles.

9. The vinyl chloride resin composition of claim 8 used in powder molding.

10. The vinyl chloride resin composition of claim 8 used in powder slush molding.

11. A vinyl chloride resin molded product obtainable through powder molding of the vinyl chloride resin composition of claim 8.

12. The vinyl chloride resin molded product of claim 11 used as a surface skin of an automobile instrument panel.

13. A laminate comprising:

a foamed polyurethane molded product; and

the vinyl chloride resin molded product of claim 11.