ATE101559T1

Process forming and dimensionally stabilizing shaped laminate.

Abstract

A process for forming a shaped laminate for use in a safety glazing such as a vehicle window or the like which comprises lightly bonding at least one flexible, transparent, thermoplastic carrier layer having one or more adherent functional performance layers or coatings on its surface to at least one layer of plasticized polyvinyl butyral to form a premolding composite, stretching the composite to impart compound curvature thereto and form a shaped, shrinkable laminate, subjecting the shaped laminate to elevated temperature while constraining its edges to relieve stresses in the carrier layer, and cooling the shaped laminate while maintaining its edges constrained. Also a method of dimensionally stabilizing a transparent, shrinkable thermoplastic layer, such as polyethylene terephthalate, in a draw-formed laminate with plasticized polyvinyl butyral which comprises heat setting the thermoplastic layer.

Term

Term ended

Projected expiry passed 7 June 2011, 15.3 years ago.

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19 members in 13 offices

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Priority claims
DocumentOfficeKindDate
53925190United States of AmericaA
53925690United States of AmericaA
9104033United States of AmericaW

Members19

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DocumentOfficeKind
US5069734AUnited States of AmericaA
CA2084662A1CanadaA1
WO9119586A1World Intellectual Property Organization (WIPO)A1
AU8056191AAustraliaA
EP0535128A1European Patent Office (EPO)A1
BR9106568ABrazilA
KR930701289ARepublic of KoreaA
MX171196BMexicoB
JPH05507661AJapanA
AU644191B2AustraliaB2
EP0535128B1European Patent Office (EPO)B1
AT101559TAustriaT
ATE101559T1This recordAustriaT1
DE69101221D1GermanyD1
ES2050056T3SpainT3
DK0535128T3DenmarkT3
DE69101221T2GermanyT2
KR950012799B1Republic of KoreaB1
US5529654AUnited States of AmericaA