Photochromic compositions and articles comprising siloxane, alkylene or substituted alkylene oligomers
申请人:Evans Alexander Richard
公开号:US20070187656A1
公开(公告)日:2007-08-16
This invention relations to a polymerizable composition for forming a photochromic article of glass transition temperature of at least 50 ° C. on curing, the composition comprising: (a) a polymerizable composition comprising a monomer component or resin formed therefrom; and (b) a photochromic dye monomer comprising a photochromic moiety and at least one oligomeric group having at least one group reactive with the monomer component during or following curing wherein the oligomer group comprises a multiplicity of monomer units selected from siloxane, alkylene and substituted alkylene.
Photochromic Compounds Comprising Polymeric Substituents And Methods For Preparation And Use Thereof
申请人:Evans Richard Alexander
公开号:US20090093601A1
公开(公告)日:2009-04-09
The present invention relates to a compound comprising a photochromic moiety and at least one substituent comprising a polymer chain having a carbon backbone and a plurality of functional moieties appended to the carbon backbone.