Vinyl chloride resin composition and joint
The vinyl chloride resin composition, featuring a specific combination of vinyl chloride resin, acrylic resin, and calcium carbonate, addresses the issues of poor dispersion and aggregation in existing compositions, resulting in improved moldability and appearance of vinyl chloride resin molded articles.
JP7689841B2Active Publication Date: 2025-06-09SEKISUI CHEMICAL CO LTD
Patent Information
- Application Number
- JP2021039169
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-03-11
- Publication Date
- 2025-06-09
- Estimated Expiration
- 2041-03-11
Smart Images
Figure 0007689841000001 
Figure 0007689841000002 
Figure 0007689841000003
Abstract
To provide a vinyl chloride-based resin composition which can enhance flowability during molding, and can improve appearance of the obtained molding.SOLUTION: A vinyl chloride-based resin composition contains a vinyl chloride-based resin, an acrylic resin having a weight average molecular weight of 100,000 or more and 500,000 or less, and calcium carbonate, wherein with respect to 100 pts.wt. of the vinyl chloride-based resin, a content of the acrylic resin is 0.5 pts.wt. or more and 6 pts.wt. or less and a content of the calcium carbonate is 0.5 pts.wt. or more and 15 pts.wt. or less, the vinyl chloride-based resin composition contains secondary particles of the calcium carbonate, and an average particle diameter of the secondary particles of the calcium carbonate is 0.1 μm or more and 15 μm or less.SELECTED DRAWING: None
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Vinyl chloride resin composition
JP1995242784A
Polyvinyl chloride-based resin composition
JP1999043577A
Partially cross-linked vinyl chloride-based resin composition
JP2000007867A
Vinylchloride based resin composition, extruded product and injection molded product
JP2002167486A
Vinyl chloride resin composition
JP2012041484A