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:
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:
Methods for preparing functionalized polyvinylpyrrolidones with polymerizable functions. Also, amphipathic polydimethylsiloxane-PVP block copolymers, such as and (meth)acrylated and (meth)acrylamide-functionalized polyvinylpyrrolidone compounds, such as The block copolymers are useful as biomaterial components in biomedical devices. They provide improved wettability, lubricity, and material compatibility to the biomedical device, e.g., ophthalmic lenses.
摘要:
The present invention provides a protein-silane and/or protein-siloxane copolymer obtainable by reacting a protein and a silane compound, the relative amounts of the protein and the silane compound being such that in the range of from 0.1 to 0.4 silane molecule is present for each reactive amino group of the protein. The copolymer is suitable for use in hair treatment compositions and is useful in reducing damage to hair caused by flexure and/or abrasion thereof.
摘要:
A description if given of novel siloxane copolymers producible by (a) reacting in a first step organopolysiloxanes (1) which comprise per molecule at least one Si-bound hydrogen atom with substantially linear oligomeric or polymeric compounds (2) of the general formula R1-(A-CnH2n)m-A1-H (I), wherein R1 is a monovalent substituted or unsubstituted hydrocarbon moiety to which Si—H groups can be added in a hydrosilylation reaction, A is a divalent, polar organic moiety selected from the group —O—, —C(O)—O—, —O—C(O)—, —O—C(O)—O—, —C(O)—NH—, —NH—C(O)—, urethane moiety and urea moiety, A1 is a divalent, polar organic moiety selected from the group —O—, —NH— and —NR′— (wherein R′ is a monovalent hydrocarbon moiety having 1 to 18 carbon atoms), n is an integer from 1 to 20 and m is O or a positive integer, (b) reacting in a second step the resultant H-A1 group-bearing intermediates (4) with organic compounds (5) which comprise per molecule at least two isocyanate groups, wherein the reaction takes place in the presence of further organic compounds (6) and (7) which are reactive toward isocyanate groups, with the proviso that the compounds (6) contain at least one tertiary amine group and that the compounds (7) are those which can be eliminated again from the siloxane copolymer in a temperature range from 50° C. to 250° C., wherein free isocyanate groups are again formed in the siloxane copolymer, and (c) partially or completely quaternizing in a third step the amine-containing intermediates (8) from step (b) with an alkylating agent (9).
摘要:
The present application relates to care agents, for example care polymers, and compositions such as consumer products comprising such care agents, as well as processes for making and using such care agents and such compositions. The performance of the care polymers that Applicants teach, can be further increased by following the emulsification teaching of the present specification and/or combining such care polymers with silicone materials.
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:
The present application relates to care agents, for example care polymers, and compositions such as consumer products comprising such care agents, as well as processes for making and using such care agents and such compositions. The performance of the care polymers that Applicants teach, can be further increased by following the emulsification teaching of the present specification and/or combining such care polymers with silicone materials.
摘要:
Disclosed are coating compositions that can be one-component, ambient curable, and waterborne. The coating compositions include a polymer that is the reaction product of a polycarbodiimide and a ketocarboxylic acid. Also disclosed are substrates coated with a coating deposited from such compositions, as well as methods for depositing a coating on a substrate, and coated substrates.
摘要:
The present invention relates to a polymerizable composition comprising, as a component A, at least one silicon-organic compound having at least two ≡Si—H groups that are reactive in the hydrosilylation reaction and, as a component B, at least one benzoxazine compound having at least two unsaturated carbon-carbon bonds that are reactive in the hydrosilylation reaction with the component A. Additional objects of the present invention include adhesives, sealants or coatings containing the polymerizable composition according to the invention, and the polymerization products of said components.