EP0211495A2
Expired / Lapsed
EP
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Reinforced shaped article and method for producing the same
Assignee: Imperial Chemical Industries Ltd
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Filing: 1986-06-20
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Granted: —
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Expires: 2006-06-20
Abstract
Abstract The invention relates to a method for producing shaped articles comprising a thermoplastics show surface and a backing layer of a rigid polyurethane or polyisocyanurate foam by applying a foamable polyurethane or polyisocyanurate composition which is substantially free from appreciable amounts of halocarbon blowing agents, in a closed mould to one face of a shaped thermoplastic sheet provided to one of the matching parts constituting said mould
Inventors
- 👤 Richard Wood
- 👤 Gerald Newton Nicholl
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 08:49
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B32B1/00; B32B5/00; B32B5/18; B32B5/20; C; C08; C08J; C08J9/00; C08J9/02; B29K; B29K2075/00; B32B2262/00; B32B2262/10; B32B2262/101; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; C08J2375/00; C08J2375/04; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249986; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/31504; Y10T428/31547
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
72 words
Method for producing a shaped article comprising a thermoplastics show surface and a backing layer of a rigid polyurethane or polyisocyanurate foam by applying a foamable polyurethane or polyisocyanate composition in a closed mould to one face of a shaped thermoplastic sheet provided to one of the matching parts constituting said mould, characterised in that the blowing agent in said foamable polyurethane or polyisocyanurate composition is substantially free from halocarbon blowing agents.
Claim 2
Dependent Claim
72 words
Method for producing a shaped article comprising a thermoplastics show surface and a backing layer of a rigid polyurethane or polyisocyanurate foam by applying a foamable polyurethane or polyisocyanate composition in a closed mould to one face of a shaped thermoplastic sheet provided to one of the matching parts constituting said mould, characterised in that the blowing agent in said foamable polyurethane or polyisocyanurate composition is substantially free from halocarbon blowing agents.
Claim 3
Dependent Claim
14 words
Method according to claim 1, characterised in that water is used as blowing agent.
Claim 4
Dependent Claim
23 words
Method according to claim 2 characterised in that the water is used as an additive to the polyol component of the foamable composition
Claim 5
Dependent Claim
23 words
Method according to claim 3 characterised in that 0.05 to 1 % by weight of water is used based on the polyol weight.
Claim 6
Dependent Claim
20 words
Method according to claim 2, characterised in that the foamable composition also contains short glass fibers dispersed in the composition.
Claim 7
Dependent Claim
31 words
Shaped article having a show surface of thermoplastic material with a reinforcement of a rigid polyurethane or polyisocyanurate foam, characterised in that the foam is substantially free from halocarbon blowing agent.
Claim 8
Dependent Claim
31 words
Shaped article having a show surface of thermoplastic material with a reinforcement of a rigid polyurethane or polyisocyanurate foam, characterised in that the foam is substantially free from halocarbon blowing agent.
Claim 9
Dependent Claim
16 words
Shaped article obtained by a method in accordance with any one of claims 1 - 5.
Claim 10
Dependent Claim
30 words
Mehtod for producing a shaped article comprising a theromplastic show surface and a backing layer of a rigid polyurethane foam, substantially as hereinbefore described with reference to the particular examples.
Claim 11
Dependent Claim
30 words
Mehtod for producing a shaped article comprising a theromplastic show surface and a backing layer of a rigid polyurethane foam, substantially as hereinbefore described with reference to the particular examples.
Claim 12
Dependent Claim
13 words
Shaped article substantially as hereinbefore des cribed with reference to the particular examples.
Claim 13
Dependent Claim
13 words
Shaped article substantially as hereinbefore des cribed with reference to the particular examples.
References Cited (Backward Citations)
No citation records indexed.
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