Nova Patents
ATE302811T1

Acrylic sheet having uniform distribution of coloring and mineral filler before and after thermoforming

Abstract

The present invention is drawn to a composition and thermoformable sheets and articles made therefrom. In the present invention, ranges of chain-transfer agents, thixotropic agents, and mineral filler content are balanced to minimize migration or maldistribution of coloring matter and mineral filler during curing of methyl methacrylate in a syrup and also during subsequent heating and deformation in thermoforming, to achieve constancy of impact resistance and improve stability of patterns even in deformed portions of formed sheets.

Term

Term ended

Projected expiry passed 26 June 2018, 8.2 years ago.

  1. Priority
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  3. Published
  4. Projected expiry
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62 members in 11 offices

This recordMember, by publication datePriority claim1 more office is in the list below

Priority claims2

Priority claims
DocumentOfficeKindDate
88895897United States of AmericaA
9813334United States of AmericaW

Members62

Family members, oldest first
DocumentOfficeKind
US5521243AUnited States of AmericaA
CA2188465A1CanadaA1
WO9626238A1World Intellectual Property Organization (WIPO)A1
AU4973296AAustraliaA
US5567745AUnited States of AmericaA
EP0757704A1European Patent Office (EPO)A1
CN1149881AChinaA
EP0757704A4European Patent Office (EPO)A4
JPH09512303AJapanA
US5705552AUnited States of AmericaA
CA2233149A1CanadaA1
WO9813402A1World Intellectual Property Organization (WIPO)A1
WO9813417A1World Intellectual Property Organization (WIPO)A1
AU690017B2AustraliaB2
US5747154AUnited States of AmericaA
EP0865453A1European Patent Office (EPO)A1
CA2259952A1CanadaA1
WO9852999A1World Intellectual Property Organization (WIPO)A1
CA2265496A1CanadaA1
WO9902582A1World Intellectual Property Organization (WIPO)A1
EP0865453A4European Patent Office (EPO)A4
US5932061AUnited States of AmericaA
EP0932638A1European Patent Office (EPO)A1
US5985972AUnited States of AmericaA
EP0983314A1European Patent Office (EPO)A1
EP0983314A4European Patent Office (EPO)A4
US6077575AUnited States of AmericaA
JP2000510190AJapanA
JP2000515581AJapanA
US6177499B1United States of AmericaB1
JP2001501253AJapanA
CA2188465CCanadaC
EP0757704B1European Patent Office (EPO)B1
AT200910TAustriaT
ATE200910T1AustriaT1
EP0932638A4European Patent Office (EPO)A4
DE69612644D1GermanyD1
DE69612644T2GermanyT2
GR3036275T3GreeceT3
CA2233149CCanadaC
US2002144975A1United States of AmericaA1
US6562927B1United States of AmericaB1
EP0865453B1European Patent Office (EPO)B1
AT251647TAustriaT
ATE251647T1AustriaT1
DE69725422D1GermanyD1
EP0983314B1European Patent Office (EPO)B1
AT263205TAustriaT
ATE263205T1AustriaT1
DE69822816D1GermanyD1
DE69725422T2GermanyT2
ES2208882T3SpainT3
DE69822816T2GermanyT2
ES2218824T3SpainT3
EP0932638B1European Patent Office (EPO)B1
AT302811TAustriaT
ATE302811T1This recordAustriaT1
DE69831309D1GermanyD1
JP3727658B2JapanB2
DE69831309T2GermanyT2
ES2248910T3SpainT3
CA2265496CCanadaC