摘要:
Polymeric products are disclosed that are suitable for application to fibrous substrates such as textiles, leather and paper, to impart oil (oleophobicity) and water repellent (hydrophobicity) properties to the treated material. The polymeric products comprise an amino-functional polysiloxane bonded through its amino groups to an addition copolymer of a fluoro-substituted alkyl ester of an olefinically unsaturated carboxylic acid and an olefinically unsaturated monomer having a functional group capable of reacting with the amino groups of polysiloxane and optionally one or more olefinically unsaturated comonomers.
摘要:
Polymeric reaction products derived from a substituted aminosiloxane and a fluorosubstituted alkyl ester of an ethylenically carboxylic acid are disclosed. The polymeric reaction products are suitable for application to substrates such as textiles, particularly fabrics, to impart oil repellent properties to textiles.
摘要:
Polymeric reaction products derived from a substituted aminosiloxane and a fluorosubstituted alkyl ester of an ethylenically carboxylic acid are disclosed. The polymeric reaction products are suitable for application to substrates such as textiles, particularly fabrics, to impart oil repellent properties to textiles.
摘要:
A surface treatment composition comprises a polyfluoropolyether silane. The polyfluoropolyether silane and the surface treatment composition are produced by reacting a perfluoropolyether-containing compound and a hydrosilane in the pres-ence of a hydrosilylation catalyst and an isomer reducing agent.
摘要:
Polymeric products are disclosed that are suitable for application to fibrous substrates such as textiles, leather and paper, to impart oil (oleophobicity) and water repellent (hydrophobicity) properties to the treated material. The polymeric products comprise an amino-functional polysiloxane bonded through its amino groups to an addition copolymer of a fluoro-substituted alkyl ester of an olefinically unsaturated carboxylic acid and an olefinically unsaturated monomer having a functional group capable of reacting with the amino groups of polysiloxane and optionally one or more olefinically unsaturated comonomers.
摘要:
A polymerization process comprising mixing siloxane polymers with organosilicon compounds having at least one silicon-bonded group RN, which is a substituent comprising at least one amine group, and with a phosphazene base catalyst and allowing the siloxanes and organosilicon compounds to polymerize to form amino-functional polyorganosiloxane polymers is claimed. Preferably the phosphazene base is selected from the following formulae: ((R12N)3P═N—)x(R12N)3−xP═NR2; {((R12N)3P═N—)x(R12N)3−xP—N(H)R2}+{A−} {((R12N)3P═N—)y(R12N)4−yP}+{A}− or {(R12N)3P═N—(P(NR12)2═N)n—P+(NR12)3}{A−} in which R1 is hydrogen or an optionally substituted hydrocarbon group, or in which two R1 groups bonded to the same N atom may be linked to complete a heterocyclic ring, R2 is hydrogen or an optionally substituted hydrocarbon group, x is 1, 2 or 3; y is 1, 2, 3 or 4, n is an integer with a value of from 1 to 10 and A is an anion.
摘要:
A polymerization process comprising mixing siloxanes having silicon-bonded groups R′ with ionic phosphazene base catalysts and allowing condensation via reaction of Si—R′ groups with the formation of a Si—O—Si linkage, R′ denoting a hydroxyl group or a hydrocarbonoxy group having up to 8 carbon atoms is claimed. The catalysts may be of the general formulae: {((R12N)3P═N—)x(R12N)3−xP—N(H)R2}+{A−} or {((R12N)3P═N—)y(R12N)4−yP}+{A}− in which R1 is hydrogen or an optionally substituted hydrocarbon group or in which two R1 groups bonded to the same N atom may be linked to complete a heterocyclic ring, R2 is hydrogen or an optionally substituted hydrocarbon group, x is 1, 2 or 3, y is 1, 2, 3 or 4 and A is an anion. Also claimed is a process which comprises mixing siloxanes having silicon-bonded groups R′ and cyclic or linear siloxanes having no silicon-bonded groups R′ with ionic phosphazene base catalysts and allowing the siloxane having silicon-bonded groups R′ to condense and the cyclic and linear siloxanes having no silicon-bonded R′ groups to polymerize by equilibration.
摘要:
Polymeric products are disclosed that are suitable for application to fibrous substrates such as textiles, leather and paper, to impart oil (oleophobicity) and water repellent (hydrophobicity) properties to the treated material. The polymeric products comprise an amino-functional polysiloxane bonded through its amino groups to an addition copolymer of a fluoro-substituted alkyl ester of an olefinically unsaturated carboxylic acid and an olefinically unsaturated monomer having a functional group capable of reacting with the amino groups of polysiloxane and optionally one or more olefinically unsaturated comonomers.
摘要:
Polymeric products are disclosed that are suitable for application to fibrous substrates such as textiles, leather and paper, to impart oil (oleophobicity) and water repellent (hydrophobicity) properties to the treated material. The polymeric products comprise an amino-functional polysiloxane bonded through its amino groups to an addition copolymer of a fluoro-substituted alkyl ester of an olefinically unsaturated carboxylic acid and an olefinically unsaturated monomer having a functional group capable of reacting with the amino groups of polysiloxane and optionally one or more olefinically unsaturated comonomers.
摘要:
An organopolysiloxane containing both an amino functional organic group and a mercapto functional organic group is disclosed. A method of making such amino-mercapto functional organopolysiloxanes is by reacting (A) a silanol-functional polysiloxane, (B) an amino functional alkoxy silane, and (C) a mercapto functional alkoxy silane, via a condensation reaction. The amino-mercapto functional organopolysiloxanes products are useful in textile and fabric treatments.