Nova Patents
EP0343433A3

Phenolic moulding compositions

Abstract

A phenolic moulding composition in solid form, such as a dough moulding composition or sheet moulding composition, comprises a phenol formaldehyde novolak resin; a phenol formaldehyde resole resin as cross linking agent for the novolak resin; fibrous reinforcement; and non-fibrous particulate filler in an amount greater than the combined amount of the novolak and resole resins; the weight proportions of the ingredients being in the ranges phenolic resins20-40%fibrous reinforcement20-50%non-fibrous particulate filler25-50% Articles moulded from the compositions under heat and pressure have the flexural strength and impact strength required in certain precision parts for the automotive and engineering industries.

Term

Term ended

Projected expiry passed 11 May 2009, 17.4 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

Every citation, both ways

Citations
DocumentRelationOfficeCategoryCited during
EP0020102A1CitesEuropean Patent Office (EPO)ADSearch report
EP0180257A1CitesEuropean Patent Office (EPO)ASearch report
US3207652ACitesUnited States of AmericaASearch report
US4424300ACitesUnited States of AmericaASearch report
US4426484ACitesUnited States of AmericaASearch report