US 5,817,402 A · Covering sheet having minute unevenness on the surface thereof, methods of producing said sheet and a molding using said sheet

Abstract

A composition containing thermoplastic elastomer and elastic fine particles is extruded into a sheet-like shape from an extruder. Then, by expanding this sheet-like shape member, a covering sheet having minute unevenness attributable to the elastic fine particles formed on the surface is produced. The covering sheet may have an adhesive layer, a substrate layer, a foamed resin layer, etc., on the opposite side to the surface having a matt feeling. Such covering sheet can be produced with good productivity without creating environmental problems such as a problem related to solvent, etc. By molding using the covering sheet, a molding having matt feeling can be obtained.

Claims14

Dependent claims

A covering sheet having a minute unevenness on a surface thereof, comprising;

a surface layer made of a composition containing as main components a urethane-based thermoplastic elastomer and elastic fine particles and having the minute unevenness on the surface thereof;
an adhesive layer;
and
a substrate layer made of olefin-based thermoplastic elastomer;
wherein said surface layer, said adhesive layer, and said substrate layer are laminated in this order;
and
wherein the adhesive layer is made of polyolefin modified by an acid or a styrene-ethylene-butylene-styrene copolymer modified by an acid.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

08/624,617Filed 23 May 1996

Granted

6 Oct 1998

Term ends

Not estimatedThe source records don’t support an estimate.

Classification52 codes

B32B 27/20
Characterised by the use of special additives: using fillers, pigments, thixotroping agents
B08B 17/06
Preventing deposition of fouling or of dust: by giving articles subject to fouling a special shape or arrangement
B08B 17/065
By giving articles subject to fouling a special shape or arrangement: the surface having a microscopic surface pattern to achieve the same effect…
B29C 45/14778
Incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles: the article consisting of a material with…

Covering sheet having minute unevenness on the surface thereof, methods of producing said sheet and a molding using said sheet

Life of this patent

Covering sheet having minute unevenness on the surface thereof, methods of producing said sheet and a molding using said sheet

Life of this patent

Abstract

Claims14