公开(公告)号：US3875256A

公开(公告)日：1975-04-01

申请号：US38399873

申请日：1973-07-30

Applicant: GEN ELECTRIC

Inventor： WHITE DWAIN M

IPC: C08G63/668 ,  C08G64/06 ,  C08G64/18 ,  C08G64/24 ,  C08G64/26 ,  C08G65/48 ,  C08G81/00 ,  C08L67/00 ,  C08L69/00 ,  C08G39/10

CPC classification number: C08L67/00 ,  C08G63/668 ,  C08G64/06 ,  C08G64/183 ,  C08G64/24 ,  C08G64/26 ,  C08G65/485 ,  C08G81/00 ,  C08L69/00 ,  Y10S525/905 ,  C08L71/00

Abstract: The invention relates to block copolymers of the A-B-A type where each A is the phenoxy residue of a poly(2,6-disubstituted1,4-phenylene oxide) having one terminal hydroxyl per polymer molecule and B is the residue of a carbonate precursor having two groups which are reactive with the hydroxyl group of said poly(phenylene oxide). These compositions are useful in producing molded articles, films, fibers, etc., having modified properties compared to the parent poly(phenylene oxides).

Abstract translation: 本发明涉及ABA型的嵌段共聚物，其中每个A是每聚合物分子具有一个末端羟基的聚（2,6-二取代的-1,4-亚苯基氧化物）的苯氧基残基，B是碳酸酯前体的残基 具有与所述聚（苯醚）的羟基反应的两个基团。 这些组合物可用于生产与母体聚（苯醚）相比具有改性性能的模塑制品，薄膜，纤维等。

公开(公告)号：US3594437A

公开(公告)日：1971-07-20

申请号：US3594437D

申请日：1969-11-28

Applicant: GEN ELECTRIC

Inventor： WHITE DWAIN M

IPC: C07C7/14 ,  C07C15/02

CPC classification number: C07C7/14 ,  C07C15/48

Abstract: IMPURE DIETHYNYLBENZENES ARE PURIFIED BY COOLING A SOLUTION OF THE MATERIAL IN A LIQUID ALKANE, MAINTAINING THE TEMPERATURE OF THE SOLUTION AT LEAST AS LOW AS -50*C., UNTIL THE PURIFIED DIETHYNYLBENZENE PRECIPITATES FROM THE SOLUTION AND ISOLATING THE PRECIPITATE FROM THE SOLUTION.

公开(公告)号：US3522275A

公开(公告)日：1970-07-28

申请号：US3522275D

申请日：1967-08-11

Applicant: GEN ELECTRIC

Inventor： FACTOR ARNOLD ,  FINKBEINER HERMAN L ,  JERUSSI ROBERT A ,  WHITE DWAIN M

IPC: C07C37/055 ,  C07C43/23 ,  C07D311/82 ,  C07F7/18 ,  C07C39/12

CPC classification number: C07C43/23 ,  C07C37/055 ,  C07C41/18 ,  C07D311/82 ,  C07F7/1852 ,  C07C39/15

Abstract: 1,219,638. Preparing phenols and xanthenes. GENERAL ELECTRIC CO. 27 June, 1968 [11 Aug., 1967], No. 30743/68. Heading C2C. Phenols of the formula where R, R 1 and R 11 are H atoms, or alkyl, cycloalkyl, alkaryl, aryl or aralkyl radicals, R 1 in addition can be an alkoxy radical, R 11 in addition can be an OH, alkoxy or aryloxy radical, and a pair of adjacent R 11 radicals or R 1 and R 11 radicals may represent a fused ring system, are obtained by heating in an inert atmosphere a diphenyl ether of formula to a temperature of 250‹ to 450‹ C., and when an R 1 on the benzene nucleus which does not contain the R 2 CH group is hydrogen, xanthenes of the formula are obtained. An oxidizing agent may be added to the reaction mixture. Examples are given for the production of the compounds. The invention also comprises the following compounds per se: 2-methyl-6-(diphenylmethyl) - phenol, 2 - methyl - 6 - (4 - -methoxybenzyl) - phenol, 2 - methyl - 6 - (3,5 - dimethyl- 4 - methoxy - or - hydroxybenzyl) - phenol.

公开(公告)号：US3408366A

公开(公告)日：1968-10-29

申请号：US65988067

申请日：1967-08-11

Applicant: GEN ELECTRIC

Inventor： WHITE DWAIN M

IPC: C07C45/54 ,  C07C47/575 ,  C07D311/86 ,  C08K5/132

CPC classification number: C07C45/54 ,  C07C47/575 ,  C07D311/86 ,  C08K5/132 ,  C07C49/84 ,  C08L23/02

公开(公告)号：US3703564A

公开(公告)日：1972-11-21

申请号：US3703564D

申请日：1970-01-05

Applicant: GEN ELECTRIC

Inventor： WHITE DWAIN M

IPC: C08G18/48 ,  C08G63/668 ,  C08G65/48 ,  C08G81/00 ,  C08L67/00 ,  C08G33/10 ,  C08G39/10

CPC classification number: C08G81/00 ,  C08G18/4879 ,  C08G63/668 ,  C08G65/485 ,  C08L67/00 ,  Y10S525/905 ,  C08L71/00

Abstract: THE INVENTION RELATES TO BLOCK COPOLYMERS OF THE A-B-A TYPE WHERE EACH A IS THE PHENOXY RESIDUE OF A POLY(2,6-DISUBSTITUTED-1,4-PHENYLENE OXIDE) HAVING ONE TERMINAL HYDROXYL PER POLYMER MOLECULE AND B IS THE RESIDUE OF A COMPOUND HAVING TWO GROUPS WHICH ARE REACTIVE WITH THE HYDROXYL GROUP OF SAID POLY (PHENYLENE OXIDE). THESE COMPOSITIONS ARE USEFUL IN PRODUCING MOLDED ARTICLES, FILMS, FIBERS, ETC., HAVING MODIFIED PROPERTIES COMPARED TO THE PARENT POLY (PHENYLENE OXIDES).

公开(公告)号：US3367978A

公开(公告)日：1968-02-06

申请号：US54718266

申请日：1966-05-03

Applicant: GEN ELECTRIC

Inventor： WHITE DWAIN M

IPC: C07C43/295 ,  C07F7/18 ,  C08G63/672 ,  C08G65/48

CPC classification number: C08G65/485 ,  C07C43/295 ,  C07F7/1852 ,  C08G63/672