Disilane/organosilicon resin having enhanced thermomechanical properties
US4618666A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1985 |
| Grant date | Oct 21, 1986 |
| Priority date | — |
| Expiry date | May 20, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/48
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel high performance disilane/organosilicon resins useful, e.g., as molding powders and textile and building waterproofing agents (either in the form of aqueous dispersions or organic solutions thereof), comprise cohydrolysis/condensation reaction products in heterogeneous solvent medium of admixture of organochlorosilanes and organochlorodisilanes, said admixture comprising: PA0 (i) from about 10 to 70 molar % of at least one diorganochlorosilane having the formula R.sub.2 SiCl.sub.2, in which the radicals R, which may be identical or different, are each hydrogen, methyl or phenyl; PA0 (ii) from about 30 to 70 molar % of at least one methylchlorodisilane which comprises at least about 30 moles % of tetrachloro-1,2-dimethyldisilane; and PA0 (iii) from 0 to about 60 molar % of at least one organotrichlorosilane having the formula R'SiCl.sub.3, in which R' is defined as is R above; and said resins having an average functionality of from about 2.2 to 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.