C08G18/487 - CPC Classification Index

ClassID:

98911 ⎘

C08G18/487 - CPC Classification

Classification description:

Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen; High-molecular-weight compounds; Polyethers Polyethers containing cyclic groups

Sub-classes:

C08G18/4875 » {containing cycloaliphatic groups} 4
C08G18/4879 » {containing aromatic groups} 88
C08G18/4883 » {containing cyclic groups having at least one oxygen atom in the ring} 112

Recent Application in this class:

20170002176

2017-01-05

POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIALS, OPTICAL MATERIAL AND PLASTIC LENS OBTAINED FROM COMPOSITION