Patent EP0445461A1 successfully refreshed from Google Patents.
EP0445461A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Adhesive materials and their production
Assignee: Ciba Specialty Chemicals Water Treatments Ltd
•
Filing: 1990-08-17
•
Granted: —
•
Expires: 2010-08-17
Abstract
Abstract Polyvinyl chloride coated and other prepasted wall coverings have a prepaste coating that is a substantially uniform discontinuous printed or sprayed coating comprising coated areas separated by small uncoated areas.
Inventors
- 👤 John Bernard Clarke
- 👤 Roy Seddon
- 👤 Pauline Lesley Couldwell
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 23:42
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0002; C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J7/29; C09J7/30; C09J7/32; C09J2301/00; C09J2301/20; C09J2301/204; C09J2301/30; C09J2301/306; C09J2400/00; C09J2400/20; C09J2400/24; C09J2400/243; C09J2400/28; C09J2400/283; C09J2427/00; C09J2427/006; D06N2203/00; D06N2203/04; D06N2203/045; D06N2203/048; D06N2205/00; D06N2205/02; D06N2205/023; D06N2209/00; D06N2209/12; D06N2209/126; D06N2209/128; D06N2209/16; D06N2209/1607; D06N2209/1621
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
47 words
A prepasted wall covering comprising a sheet substrate having a decoration on one surface and a dry water activatable adhesive coating on the other surface, characterised in that the adhesive coating is a substantially uniform discontinuous printed or sprayed coating comprising coated areas separated by uncoated areas.
Claim 2
Dependent Claim
24 words
A wall covering according to claim 1 in which the sheet substrate has a substantially water impermeable coating on the surface carrying the declaration.
Claim 3
Dependent Claim
30 words
A water ring according to claim 1 or claim 2 comprising a fibrous substrate and a polyvinyl chloride foamed or unfoamed continuous or discontinuous layer including organic solvent and/or plasticiser.
Claim 4
Dependent Claim
26 words
A wall covering according to any preceding claim in which the maximum separation between coated areas is not more than 6mm, preferably not more than 2mm.
Claim 5
Dependent Claim
30 words
A wall covering according to any preceding claim in which the coated areas are printed dots having a size from 0.02 to 4mm and a spacing of 0.5 to 6mm.
Claim 6
Dependent Claim
19 words
A wall covering according to any preceding claim in which the coated areas are printed by ink jet printing.
Claim 7
Dependent Claim
31 words
A coating according to any preceding claim in which the adhesive coating is of a water soluble or water swellable polymer of ethylenically unsaturated monomers and that is adhesive when wet.
Claim 8
Dependent Claim
28 words
A wall covering according to claim 7 in which the monomers include a monomer having a C8-30 hydrophobic group connected to a unsaturated carbon atom of the monomer.
Claim 9
Dependent Claim
45 words
A wall covering according to claim 7 or claim 8 in which the polymer is an alkaline water soluble or water swellable form of a polymer that, in free acid form is an insoluble and non swellable polymer and that was made by oil-in-water polymerisation.
Claim 10
Dependent Claim
39 words
A wall covering according to any preceding claim made by applying coated areas of polymeric material separated by uncoated areas and subsequently swelling the polymeric materials in the coated areas and thereby reducing the size of the uncoated areas.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.