Processing

Please wait...

Settings

Settings

Goto Application

1. CN111253551 - 一种聚氨酯光学树脂制备方法及其应用

Office China
Application Number 201811452961.0
Application Date 30.11.2018
Publication Number 111253551
Publication Date 09.06.2020
Publication Kind A
IPC
C08G 18/79
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
70characterised by the isocyanates or isothiocyanates used
72Polyisocyanates or polyisothiocyanates
77having hetero atoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
78Nitrogen
79characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08G 18/32
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
30Low-molecular-weight compounds
32Polyhydroxy compounds; Polyamines; Hydroxy amines
C08G 18/38
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
30Low-molecular-weight compounds
38having hetero atoms other than oxygen
G02B 1/04
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made; Optical coatings for optical elements
04made of organic materials, e.g. plastics
Applicants 万华化学集团股份有限公司
万华化学(宁波)有限公司
上海万华科聚化工科技发展有限公司
Inventors 李建峰
尚永华
吴谦
朱付林
陈浩
王鹏
王峤
华卫琦
黎源
Title
(ZH) 一种聚氨酯光学树脂制备方法及其应用
Abstract
(ZH)
本发明提供一种聚氨酯光学树脂制备方法及其应用,所述制备方法包括将包含异氰酸酯和多元硫醇化合物的原料组合物通过聚合反应得到所述聚氨酯光学树脂,所述原料组合物中所用的异氰酸酯中存在的异氰酸酯的二聚体结构聚合物的含量控制为≤4wt%,优选≤3wt%,进一步优选为≤2.5wt%,更优选为≤1.6wt%。本发明提供的聚氨酯光学树脂制备方法能够良好的制造聚氨酯光学树脂且能有效降低制品光学形变发生率。

Also published as