公开(公告)号：CA1245620A

公开(公告)日：1988-11-29

申请号：CA484892

申请日：1985-06-21

Applicant: GEN ELECTRIC

Inventor： BENNETT JAMES G JR ,  CHAMBERS GREGORY R

IPC: B01J23/06 ,  C07B37/00

Abstract: ZINC-CONTAINING ORTHO-ALKYLATION CATALYST PRECURSOR AND CATALYST, AND PROCESS OF USE IN ALKYLATION OF PHENOLS Catalyst precursor compositions comprising a mixture of magnesium oxide or a source of magnesium oxide and a water insoluble zinc compound are described. The compositions are calcinable to a catalyst that is useful in reactions for the ortho-alkylation of phenols.

公开(公告)号：CA1153778A

公开(公告)日：1983-09-13

申请号：CA366115

申请日：1980-12-04

Applicant: GEN ELECTRIC

Inventor： CHAMBERS GREGORY R ,  SMITH WILLIAM E

IPC: C07C29/10 ,  C07D307/08 ,  C07C31/20

Abstract: RD 12,308 ACIDIC MIXED OXIDE CATALYTIC DE-ALKYLATION OF TERTIARY-ALKYL-ETHER-ALKANOLS A de-alkylation process which comprises contacting a t-alkylether-alkanol, e.g. 4-t-butylether-n-butan-1-ol, with an acidic solid mixed oxide, e.g. silica-alumina, catalyst which results in the formation of alkanediols, e.g. 1,4-butanediol, in the substantial absence of undesirable side reactions, e.g. the formation of tetrahydrofuran. The resulting alkanediols are useful in the preparation of polyesters, e.g. polybutylene terephthalates.

公开(公告)号：CA2027390A1

公开(公告)日：1991-05-09

申请号：CA2027390

申请日：1990-10-11

Applicant: GEN ELECTRIC

Inventor： CHAMBERS GREGORY R ,  SMITH GARY F ,  YATES JOHN B III

IPC: C08L67/00 ,  C08L67/02 ,  C08L69/00 ,  C08L71/12 ,  C08L21/00

Abstract: (8CN-8329) In acordance with the invention, there are provided thermoplastic compositions comprising an admixture of: (a) polyphenylene ether resin; (b) polyester resin; and (c) a compatibilizer for (a) and (b) comprised of polycarbonate-polyester copolymer in an amount sufficient to compatiblize components (a) and (b). In preferred embodiments, the polycarbonate-poly-ester copolymer is present in an amount of at least 2%, preferably at least about 5% and more prefably from about 5% to about 25% by weight based on 100% by weight of (a) and (b). In addition, preferably, the polycarbonate component of said polycarbonate-polyester copolymer is present in an amount of at least 1%, preferably at least about 3%, and more preferably from about 3% to about 20% by weight based on 100% by weight of (a) and (b).