Dye, filler made therefrom, compositions including the filler, and method of determining degree of cure of such compositions
US10233307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Apr 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/78
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A compound represented by formula (I): and a treated filler having the compound on at least a portion of its surface. R is hydrogen or alkyl. X is alkylene, arylalkylene, or alkylarylene, each optionally interrupted by at least one of an ether, thioether, amine, amide, ester, thioester, carbonate, thiocarbonate, carbamate, thiocarbamate, urea, or thiourea, with alkylene optionally interrupted by arylene. W is hydroxyl, a sulfonic acid group, a phosphonic acid group, carboxylic acid group, —NHR1, epoxy, or —Si(Y)x(Z)3-x. Y is alkyl, aryl, arylalkylenyl, or alkylarylenyl. Z is halide, hydroxyl, alkoxy aryloxy, acyloxy, polyalkyleneoxy, —O— covalently bonded to the surface of the filler, or —O bonded to another silicon atom, and x is 0 or 1. A composition including the treated filler, a method of making the treated filler, and a method of determining the degree of cure of a curable polymeric resin are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.