摘要:
A block-copolymer containing at least two different blocks wherein block A contains (meth)acrylate monomers the copolymer having a glass transition temperature of less than 15 °C, block B contains (meth)acrylate monomers the copolymer having a glass transition temperature of more than 25 °C being free of thio-containing substances in the polymer chain, characterized in that one block contains at least one photoinitiator chemically bound to the chain.
摘要:
High durable polarized film comprising a radiation curable PSA layer for lamination in TFT/LCD applications have high humidity and heat resistance. In one embodiment, the adhesive comprises a UV curable acrylic polymer, a compatible tackifier, a multifunction unsaturated oligomer, and a long chain alkyl acrylate monomer.
摘要:
A treatment process for removing the thiocarbonylthio group from the RAFT polymers without sacrificing the versatile complex architectures of polymer is disclosed. The resultant RAFT polymers have higher optical clarity and less odor than conventionally prepared RAFT polymers.
摘要:
UV curable pressure sensitive adhesive containing an antistatic agent, and films comprising UV cured pressure sensitive adhesives containing antistatic agents, are particularly useful in the manufacture of electrical components.
摘要:
Disclosed is a method for formation of block copolymers using a Single Electron Transfer Living Radical Polymerization (SET-LRP) process. The process can be used to form di and tri-block copolymers from vinyl monomers. In one embodiment the SET-LRP process comprises initially forming a macroinitiator using SET-LRP to form a first block of a di or tri-block copolymer and then using SET-LRP to form additional blocks of the copolymer. The produced block copolymers have very narrow polydispersity indexes and controlled molecular weights. The process permits incorporation of photoinitiators in any of the block formation reactions. The method also includes purification processes that result in a block copolymer having very low color making it useful in a variety of applications. In one application block copolymers prepared according to the present process can be used in hot-melt adhesives.
摘要:
The present invention relates to curable barrier encapsulants or sealants for electronic devices that have pressure sensitive adhesive properties. The encapsulants are especially suitable for organic electronic devices that require lower laminating temperature profiles. The encapsulant protects active organic/polymeric components within an organic electronic device from environmental elements, such as moisture and oxygen.