ORGAOPOLYSILOXANE AND CURABLE COMPOSITION CONTAINING SAME

• Main Authors: YAMADA Tetsuro, HIROKAMI Munenao
• Format: Patent
• Language: English; French; German
• Published: 25.01.2023
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

This organopolysiloxane which has a constituent unit represented by general formula (1) and a group represented by general formula (2), said group being directly bonded to a silicon atom, enables a curable composition containing a polyisocyanate compound to achieve a good balance between fast curing properties and storage stability, and enables the achievement of a cured product that has excellent hardness, heat resistance and wet heat resistance.(In formula (1), each of R1A and R1B independently represents a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms, or an aryl group having from 6 to 10 carbon atoms; and A1 represents an unsubstituted or substituted divalent hydrocarbon group having from 1 to 20 carbon atoms and optionally having a hetero atom.)        R2O-     (2)(In formula (2), R2 represents a hydrogen atom, an unsubstituted or substituted alkyl group having from 1 to 10 carbon atoms, or an unsubstituted or substituted aryl group having from 6 to 10 carbon atoms.)