A thermoplastic material
    1.
    发明专利

    公开(公告)号:AU2009312813A1

    公开(公告)日:2010-05-14

    申请号:AU2009312813

    申请日:2009-11-04

    Applicant: ESSILOR INT

    Abstract: Use of a thermoplastic material for blocking an optical substrate (100) in a machining position, wherein the thermoplastic material is formulated from a composition comprising a shellac and a plasticizer where the shellac and the plasticizer are chosen so as to have the softening point of the thermoplastic material greater than or equal to 60° C. and smaller than or equal to 85° C.

Patent Agency Ranking