Biocides based on silanol terminated silanes and siloxanes
US7347970B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2005 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | May 11, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/1675
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of destroying target microorganisms comprises the step of contacting at least one target microorganism with at least one low molecular weight silanol end group containing molecule. The silanol containing molecule is selected from silanols (R1R2R3SiOH), siloxanediols HO(R1R2SiO)nH or siloxanols HO(R1R2SiO)nSiR1R2R3, where R1, R2 and R3 are selected from 1 to 4 carbon alkyl or fluoroalkyl moieties, or vinyl, or aryl groups and n is <6 . The silanol end group containing molecule can be triethylsilanol, diphenylmethylsilanol, t-butyldimethylsilanol, n-butyldimethylsilanol, n-propyldimethylsilanol, ethyldimethylsilanol, vinylphenylmethylsilanol, phenyldimethylsilanol, 3,3,3 trifluoro propyldimethylsilanol, benzyldimethylsilanol and phenethyldimethylsilanol, or mixtures thereof. A composition of matter includes a silanol end group containing molecule according to the invention blended with a polymer or dissolved in aqueous solution along with an ether-based cosolvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.