Alkoxyalkyl phosphate plasticizing compositions
US4207225A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1979 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Mar 6, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/521
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A plasticizing composition for polyvinyl chloride resin is prepared by mixing from about 20 to about 50 parts by weight of tris(alkoxyalkyl)phosphate having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are alkoxyalkyl radicals having the formula: ##STR2## wherein n is an integer from 1 to 18; x is an integer from 1 to 2; PA1 R' is either hydrogen or an alkyl radical, and PA1 R" is either hydrogen or an alkyl radical; in combination with from about 80 to about 50 parts by weight of another phosphate ester selected from the group consisting triaryl phosphate, alkyl diphenyl phosphate, trialkyl phosphate, tris(alkylphenyl)phosphate, alkylphenyl/phenyl phosphate, and mixture thereof. Polyvinyl chloride resins plasticized with 30 or more parts per hundred of such phosphate ester plasticizer mixtures are heat stable, fire resistant and flexible at low temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.