Hydroxyl-terminated PDMS as cure control additive for the silane crosslinking of polyolefins
US10563022B2 · kind B2 · utility
2Cited by
3References
14Claims
0Family size
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Key dates
| Filing date | Apr 12, 2016 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jul 31, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Scorch of a silane-functionalized polyolefin is minimized during melt mixing with a flame retardant through the use of a polydimethylsiloxane (PDMS) having a (1) number average molecular weight (Mn) greater than or equal to (≥) 4,000 grams per mole (g/mol), (2) viscosity of greater than or equal to (≥) 90 centipoise (cP), and (3) hydroxyl group content of less than or equal to (≤) 0.9 weight percent (wt %) based on the weight of the PDMS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.