Bleaching and dyeing; fluid treatment and chemical modification – Nontextile – dyeing process or product – including inorganic... – Polymer from polyol and a polycarboxylic acid or derivative...
Reexamination Certificate
2007-01-09
2007-01-09
Einsmann, Margaret (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Nontextile, dyeing process or product, including inorganic...
Polymer from polyol and a polycarboxylic acid or derivative...
C008S515000, C008S516000, C552S208000, C552S221000, C552S223000, C552S224000, C552S225000, C552S226000, C552S234000, C552S238000, C552S241000, C552S243000, C552S255000, C552S256000
Reexamination Certificate
active
10508715
ABSTRACT:
The present invention relates to a compound of formula Iwherein R1and R3are each independently of the other —NHR5, NHSO2R5, —NHCOR5, —OR6or —SR7, R2and R4are each independently of the other —OR6or —SR7, with the proviso that not all of the substituents R1to R4are —SR7, R5is hydrogen, alkyl, aryl, aralkyl or a group of formula —(CnH2nX)m—H wherein X is —O—, —S—, —SO2—, —NH—, —NR8—, —CONH— or —CONR8— and R8is alkyl or aryl, n is a number from 2 to 6 and m is a number from 1 to 10, R6is aryl or heteroaryl and R7is alkyl, aryl, heteroaryl or a group of formula —(CnH2nX)m—H wherein X is —O—, —S—, —SO2—, —NH—, —NR8—, CONH— or —CONR8— and R8is alkyl or aryl, to a process for the preparation thereof and to the use thereof in a method of producing mass-coloured plastics or polymeric colour particles.
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Patent Abstracts of Japan Publication No. 62265355, (1987).
Arquint Alfons
Lauk Urs
Nowack Patric
Ciba Specialty Chemicals Corporation
Einsmann Margaret
Khan Amina
Loggins Shiela A.
Mansfield Kevin T.
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