A Melt Polymerization Method For The Preparation Of Siloxane

A Melt Polymerization Method For The Preparation Of Siloxane Copolycarbonates And Siloxane Copolycarbonates Per Se.

Abstract: TITLE: A MELT POLYMERIZATION METHOD FOR THE PREPARATION OF SILOXANE COPOLYCARBONATES AND SILOXANE COPOLYCARBONATES PER SE. A melt polymerization method for the preparation of silioxane copolycarbonates which comprises reacting at least one aromatic dihydroxy compound, a carbonic acid diester, a hydroxhyaryl terminated polydiorganosiloxane and a catalyst, chosed from the group consisting of quaternary; ammonium compound, alkali metal compound, alkaline earth metal compound or combinations thereof, in the presence of a salt, characterized in that the salt in aqueous solution at about 0.1 molar has a pH in the range between about 0 and 7, and the hydroxyaryl terminated polydiorganosiloxane is present in a range between about 0.1 weight percent and about 40 weight percent of siloxane copolycarbonate, (FIG. - nil)

Patent Information

Application #

Filing Date

18 July 2002

Publication Number

38/2006

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Patent Number

Legal Status

Grant Date

2008-04-23

Renewal Date

Applicants

GENERAL ELECTRIC COMPANY

1 RIVER ROAD, SCHENECTADY, NY 12345, UNITED STATES OF AMERICA, A CORPORATION OF THE STATE OF NEW YORK.

Inventors

1. BANACH TIMOTHY EDWARD

26 CEDAR LANE SCOTIA, NY 12302

2. DAVIS GARY CHARLES

5 FELICIA COURT, ALBANY, NY 12205.

3. SMIGELSKI PAULL MICHAEL JR.

966 BURDECK STREET, APARTMENT 3, SCHENECTADY, NY 12306.

4. MCCLOSKEY PATRICK JOSEPH

10 MEADOWBROOK ROAD, WATERVLIET, NY 12189.

Specification

Documents

Application Documents

#	Name	Date
1	in-pct-2002-938-kol-21-01-2023-relevent documents.pdf	2023-01-21
1	IN-PCT-2002-938-KOL-FER-[20-12-2004].pdf	2004-12-20
2	IN-PCT-2002-938-KOL-(18-03-2015)-FORM-27.pdf	2015-03-18
2	IN-PCT-2002-938-KOL-LETTER OF PATENT CERTIFICATE-[23-04-2008].pdf	2008-04-23
3	in-pct-2002-938-kol-granted-specification.pdf	2011-10-08
3	IN-PCT-2002-938-KOL-FORM-27.pdf	2013-04-10
4	in-pct-2002-938-kol-granted-reply to examination report.pdf	2011-10-08
4	in-pct-2002-938-kol-granted-abstract.pdf	2011-10-08
5	in-pct-2002-938-kol-granted-letter patent.pdf	2011-10-08
5	in-pct-2002-938-kol-granted-assignment.pdf	2011-10-08
6	in-pct-2002-938-kol-granted-gpa.pdf	2011-10-08
6	in-pct-2002-938-kol-granted-claims.pdf	2011-10-08
7	in-pct-2002-938-kol-granted-form 5.pdf	2011-10-08
7	in-pct-2002-938-kol-granted-correspondence.pdf	2011-10-08
8	in-pct-2002-938-kol-granted-form 3.pdf	2011-10-08
8	in-pct-2002-938-kol-granted-description (complete).pdf	2011-10-08
9	in-pct-2002-938-kol-granted-form 1.pdf	2011-10-08
9	in-pct-2002-938-kol-granted-form 2.pdf	2011-10-08
10	in-pct-2002-938-kol-granted-form 18.pdf	2011-10-08
11	in-pct-2002-938-kol-granted-form 1.pdf	2011-10-08
11	in-pct-2002-938-kol-granted-form 2.pdf	2011-10-08
12	in-pct-2002-938-kol-granted-description (complete).pdf	2011-10-08
12	in-pct-2002-938-kol-granted-form 3.pdf	2011-10-08
13	in-pct-2002-938-kol-granted-correspondence.pdf	2011-10-08
13	in-pct-2002-938-kol-granted-form 5.pdf	2011-10-08
14	in-pct-2002-938-kol-granted-claims.pdf	2011-10-08
14	in-pct-2002-938-kol-granted-gpa.pdf	2011-10-08
15	in-pct-2002-938-kol-granted-assignment.pdf	2011-10-08
15	in-pct-2002-938-kol-granted-letter patent.pdf	2011-10-08
16	in-pct-2002-938-kol-granted-abstract.pdf	2011-10-08
16	in-pct-2002-938-kol-granted-reply to examination report.pdf	2011-10-08
17	IN-PCT-2002-938-KOL-FORM-27.pdf	2013-04-10
17	in-pct-2002-938-kol-granted-specification.pdf	2011-10-08
18	IN-PCT-2002-938-KOL-(18-03-2015)-FORM-27.pdf	2015-03-18
18	IN-PCT-2002-938-KOL-LETTER OF PATENT CERTIFICATE-[23-04-2008].pdf	2008-04-23
19	IN-PCT-2002-938-KOL-FER-[20-12-2004].pdf	2004-12-20
19	in-pct-2002-938-kol-21-01-2023-relevent documents.pdf	2023-01-21