EP 0912333 A4 20010228 - POLYSTYRENE FOAM SHEET FOR FORMING DEEP DRAWN ARTICLES, AND THE DEEP DRAWN ARTICLES MADE THEREFROM
Title (en)
POLYSTYRENE FOAM SHEET FOR FORMING DEEP DRAWN ARTICLES, AND THE DEEP DRAWN ARTICLES MADE THEREFROM
Title (de)
SCHAUMFOLIE AUS POLYSTYROL ZUR HERSTELLUNG TIEFGEZOGENER FORMTEILE, UND DARUS HERGESTELLTE TIEFGEZOGENE FORMTEILE
Title (fr)
FEUILLE DE MOUSSE DE POLYSTYRENE DESTINEE AU FORMAGE PROFOND D'ARTICLES, ET ARTICLES AINSI FORMES A PARTIR DE LADITE FEUILLE
Publication
Application
Priority
- US 9707595 W 19970506
- US 64353696 A 19960506
Abstract (en)
[origin: WO9742025A1] A polystyrene foam Sheet (A) for thermoforming deep drawn articles. The polystyrene foam sheet contains 0.5 to 15 wt.% of a rubber component, from 0.5 to 2.0 wt.% of a nucleating agent, has a uniform thickness of from 0.060 to 0.250 inches with a tolerance of +/- 0.10 inches, a density in the range of 4 to 18 lb/ft<3>, and an average cell size of 0.12 to 0.34 mm. Optionally, one or more films (22) may be extrusion coated or laminated to the foam sheet prior to thermoforming. The resulting deep drawn articles have draw ratios greater than 1.0, have good heat insulation capacity with an attractive appearance.
IPC 1-7
IPC 8 full level
B32B 5/18 (2006.01)
CPC (source: EP US)
B32B 1/00 (2013.01 - US); B32B 5/18 (2013.01 - EP US); B32B 27/065 (2013.01 - US); B32B 38/12 (2013.01 - US); B32B 2266/0228 (2013.01 - US); B32B 2307/304 (2013.01 - US); B32B 2307/738 (2013.01 - US); B32B 2439/00 (2013.01 - US)
Citation (search report)
- [Y] EP 0411923 A2 19910206 - DOW CHEMICAL CO [US]
- [A] US 5422378 A 19950606 - VO CHAU V [FR]
- See references of WO 9742025A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9742025 A1 19971113; AU 3059197 A 19971126; CA 2252759 A1 19971113; EP 0912333 A1 19990506; EP 0912333 A4 20010228
DOCDB simple family (application)
US 9707595 W 19970506; AU 3059197 A 19970506; CA 2252759 A 19970506; EP 97925460 A 19970506