US 5,571,286 AGranted

Polymers and prepolymers and their use in a method for the treatment of wool

AssigneePrecision Processes Textiles

InventorsDavid L. Connell, Anthony Szpala

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Abstract

A process for shrink-proofing wool which comprises treating the wool with specific polymers and prepolymers derived from polyoxyalkyleneamines.

Claims7

Dependent claims

A method for the treatment of wool so as to impart shrink resistance which comprises contacting said wool with an aqueous solution of the reaction product of a diamine or triamine polyoxyalkylene polymer having a polymerization degree of four to fifty or a mixture thereof with epichlorohydrin in a ratio of epichlorohydrin to amino nitrogen of 1:1 to 3:1.

Dependencies are inferred from the claim text.

Facts

Application: 08/271,743Filed 7 Jul 1994 · division
Priority: GB 891690624 Jul 1989
Granted: 5 Nov 1996
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

D06M 13/372
With compounds containing nitrogen: containing etherified or esterified hydroxy groups ; Polyethers of low molecular weight
C08G 73/024
Polyamines: polyamines containing oxygen in the form of ether bonds in the main chain
D06M 15/53
Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds: polyethers
D06M 15/61
Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds: polyamines polyimines

Family

Serial556,976Parent of this division · filed 24 Jul 1990
US 5,438,116 AParent of this division
US 5,571,286 AThis patent

From the US filing history. Foreign family members aren’t listed.

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