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Pressure sensitive adhesive and its preparation

  • US 20030215660A1
  • Filed: 02/03/2003
  • Published: 11/20/2003
  • Est. Priority Date: 03/19/2002
  • Status: Active Grant
First Claim
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1. A pressure sensitive adhesive comprising a mixture of:

  • a) a styrene block copolymer having a star-shaped structure and a molecular weight Mw of more than 300,000 g/mol, or having elastomer blocks which contain more than 30% by weight of 1,2-linked diene in their block structure, or both, and which is crosslinkable by exposure to UV-light or electron beams, and b) one or more block copolymers having polyvinylaromatic blocks and elastomer blocks, the polyvinylaromatic block content being greater than 20% by weight, and c) one or more tackifier resins.

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