US10344135B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10344135-B2 |
| Application number | US-201615554054-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 4, 2016 |
| Priority date | Mar 5, 2015 |
| Publication date | Jul 9, 2019 |
| Grant date | Jul 9, 2019 |
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Provided is a vinyl chloride resin composition for powder molding that can provide a molded product having low fluff adhesiveness. The vinyl chloride resin composition for powder molding contains a vinyl chloride resin (a) and a silicone oil (b) having a viscosity of at least 10 cs and no greater than 200×10 4 cs. The content of the silicone oil (b) having a viscosity of at least 10 cs and no greater than 200×10 4 cs is at least 0.1 parts by mass and no greater than 10 parts by mass per 100 parts by mass of the vinyl chloride resin (a).
Opening claim text (preview).
The invention claimed is: 1. A vinyl chloride resin composition for powder molding comprising: a vinyl chloride resin (a); and a silicone oil (b) having a viscosity of at least 10 cs and no greater than 200×10 4 cs, wherein content of the silicone oil (b) having a viscosity of at least 10 cs and no greater than 200×10 4 cs is at least 0.1 parts by mass and no greater than 10 parts by mass per 100 parts by mass of the vinyl chloride resin (a), wherein the vinyl chloride resin (a) includes vinyl chloride resin particles (a1) having an average degree of polymerization of at least 800 and no greater than 5,000, and vinyl chloride resin fine particles (a2) having an average degree of polymerization of at least 500 and no greater than 5,000, the vinyl chloride resin particles (a1) having an average degree of polymerization of at least 800 and no greater than 5,000 have a percentage content in the vinyl chloride resin (a) of at least 70 mass % and no greater than 100 mass %, and the vinyl chloride resin fine particles (a2) having an average degree of polymerization of at least 500 and no greater than 5,000 have a percentage content in the vinyl chloride resin (a) of at least 0 mass % and no greater than 30 mass %. 2. The vinyl chloride resin composition for powder molding according to claim 1 , further comprising a plasticizer, wherein content of the plasticizer is at least 90 parts by mass per 100 parts by mass of the vinyl chloride resin (a). 3. The vinyl chloride resin composition for powder molding according to claim 1 used in powder slush molding. 4. A vinyl chloride resin molded product obtained through powder molding of the vinyl chloride resin composition for powder molding according to claim 1 . 5. A vinyl chloride resin molded product obtained through powder slush molding of the vinyl chloride resin composition for powder molding according to claim 1 . 6. The vinyl chloride resin molded product according to claim 4 for a surface skin of an automobile instrument panel. 7. A laminate comprising: a foamed polyurethane molded product; and the vinyl chloride resin molded product according to claim 4 . 8. The laminate according to claim 7 for an automobile instrument panel. 9. The vinyl chloride resin composition for powder molding according to claim 1 , wherein the silicone oil (b) has a viscosity of at least 10×10 4 cs and no greater than 200×10 4 cs.
Polysiloxanes · CPC title
comprising vinyl {(co)polymers; comprising acrylic (co)polymers} · CPC title
comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF · CPC title
characterized by the use of several polymeric components · CPC title
Low molecular weight, e.g. <100,000 Da. · CPC title
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