摘要:
Siloxane-based pipe coatings include a hot melt processable siloxane-based elastomeric polymer, and may optionally contain fillers and additives. The siloxane-based elastomeric polymer is a urea-containing segmented copolymer or an oxamide-containing segmented copolymer. The coatings are substantially free of tackifying resins and are non-tacky and non-adhesive until heated to a temperature of at least 50 C.
摘要:
The present invention relates to the use of modified polysiloxanes in thermally curing coating material compositions and molding materials, and to thermally curing coating material compositions and molding materials comprising modified polysiloxanes. The present invention also relates to coatings on a substrate, and to moldings which have been produced with such a coating material composition or molding material.
摘要:
The present invention relates to macroinitiators comprising at least one hydrophobic segments in a molecule, wherein a molecular weight of the hydrophobic segment is 300 to 1800. The present invention further relates to block copolymers, wetting agent and polymeric materials having the block copolymers of the present invention associated with, which is suitable for medical devices, particularly for ophthalmic devices, including contact lenses, ophthalmic lenses, punctal plugs and artificial corneas.
摘要:
In various embodiments, provided are silicon-containing coatings; silicon-containing coatings comprising microstructures that are responsive to one or more stimuli; oxidized products of said silicon-containing coatings; bulk solids; oxidized solids and powders; methods of preparing such coatings, solids, and powders; and substrates comprising the provided coatings.
摘要:
The present application relates to organosilicones and compositions such as consumer products comprising such organosilicones, as well as processes for making and using such organosilicones and such compositions. Such compositions comprising such organosilicones are easier to formulate, and provide more economical and superior care benefits when compared to current silicone containing compositions.
摘要:
A method of preparing polydiorganosiloxane polyoxamide copolymers is described. These copolymers have at least one polydiorganosiloxane segment and at least two aminooxalylamino groups. The method can be used in the presence or absence of a solvent. Intermediates involved in the preparation of the copolymers are also described.
摘要:
Siloxane-containing reactive compounds contain moisture-curable alkoxy-silane functional end groups and also contain fluorocarbon-containing segments. The siloxane-containing and fluorocarbon-containing reactive compounds may be prepared from siloxane-containing and fluorocarbon-containing oxamide compounds or amine compounds. Siloxane-containing and fluorocarbon-containing polymers may be prepared from the reactive compounds by reaction with water. The siloxane-containing and fluorocarbon-containing polymers may be release materials or adhesives.
摘要:
A polysiloxane comprising from 5 to 250 -SiO- units and terminal groups of the general formula
-E-CH 2 CH 2 -N(R)-Q 4 - Si (R 6 ) n Y 3-n
wherein E represents -O-C(=O)- or -NH-C(=O)-, R represents independently per unit H, an alkyl group or a group Q5-Si(R6)nY3-n. wherein each Y independently represents a hydrolysable group and R6 represents an alkyl group or an aryl group and n is 0 or 1, and Q4 and Q5 represent identical of different hydrocarbon linking groups containing 1 to 10 carbon atoms which may or may not be interrupted by sulphur, nitrogen and/or oxygen atoms. Also provided are methods of making the polysiloxane, coating compositions comprising the siloxane, methods of coating and coated articles.