Processing

Please wait...

Settings

Settings

Goto Application

1. WO1990012819 - PHOTOCHROMIC POLYMERIC ARTICLE

Publication Number WO/1990/012819
Publication Date 01.11.1990
International Application No. PCT/US1990/001640
International Filing Date 28.03.1990
Chapter 2 Demand Filed 12.11.1990
IPC
C08F 218/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
218Copolymers having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid
CPC
C08F 218/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
218Copolymers ; of compounds; having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
Y10S 430/163
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
430Radiation imagery chemistry: process, composition, or product thereof
163Radiation-chromic compound
Y10S 525/92
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
525Synthetic resins or natural rubbers -- part of the class 520 series
92Polyurethane having terminal ethylenic unsaturation
Applicants
  • PPG INDUSTRIES, INC. [US]/[US]
Inventors
  • McBAIN, Douglas, S.
  • CRANO, John, C.
Agents
  • STEIN, Irwin, M.
Priority Data
339,85018.04.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PHOTOCHROMIC POLYMERIC ARTICLE
(FR) ARTICLE POLYMERE PHOTOCHROMIQUE
Abstract
(EN)
A photochromic article having improved photochromic equilibrium response is described. In particular, a photochromic compound is incorporated into or applied to an article, e.g., matrix, of a synthetic organic resin prepared from a composition comprising from about 55 to about 90 weight percent of a polyol(allyl carbonate), e.g., diethylene glycol bis(allyl carbonate), from about 10 to about 40 weight percent of an aliphatic polyurethan having terminal ethylenic unsaturation, e.g., an aliphatic polyesterurethan diacrylate, and from about 0 to about 5 weight percent of a difunctional monomer selected from the group consisting of allyl methacrylate and allyl acrylate. Such photochromic articles have an improved photochromic equilibrium response at ambient temperatures compared to the response of a comparable photochromic article prepared from a polyol(allyl carbonate) homopolymer, e.g., homopolymers of diethylene glycol bis(allyl carbonate), at the same ambient temperatures.
(FR)
Article photochromique ayant une réaction d'équilibre photochromique améliorée. Notamment, un composé photochromique est incorporé ou appliqué à un article, par exemple une matrice, en une résine organique synthétique préparée à partir d'une composition comportant entre environ 55 % et environ 90 % en poids d'un alcool polyvalent (carbonate d'allyle), par exemple un glycol diéthylénique bis (carbonate d'allyle), entre environ 10 % et environ 40 % en poids d'un polyuréthane aliphatique dans un état d'insaturation éthylénique terminale, par exemple un diacrylate de polyestéruréthane aliphatique, et entre environ 0 % et environ 5 % en poids d'un monomère bifonctionnel choisi parmi le groupe constitué du méthacrylate d'allyle et de l'acrylate d'allyle. De tels articles photochromiques ont une réaction d'équilibre photochromique améliorée aux températures ambiantes en comparaison à la réaction d'un acide photochromique comparable préparé à partir d'un homopolymère d'alcool polyvalent (carbonate d'allyle), par exemple, des homopolymères de glycol diéthylémique bis (carbonate d'allyle), aux mêmes températures ambiantes.
Latest bibliographic data on file with the International Bureau