Pulverulent compositions based on vinyl chloride
US4119601A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1976 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Dec 8, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2427/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Method of preparing pulverulent polymer or copolymer compositions based on vinyl chloride and suitable for immediate use comprising preparing a master mixture of said polymers and/or copolymers based on vinyl chloride and additives employed therewith in use by mixing in an aqueous medium one or more of said polymers and/or copolymers and said additives in the form of liquid additives and/or fusible solid additives, the liquid additives and at least part of the fusible solid additives being introduced with agitation in the form of one or more dispersions of finely divided particles of a homogeneous phase in water, and mixing the master mixture with the remainder of the polymer and/or copolymers based on vinyl chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.