公开(公告)号：US3642714A

公开(公告)日：1972-02-15

申请号：US3642714D

申请日：1969-05-14

Applicant: ALLIED CHEM

Inventor： WEEDON GENE C ,  LOFQUIST ROBERT A ,  MUMFORD ROBIN B

IPC: C08G69/42 ,  C08G20/38

CPC classification number: C08G69/42

Abstract: ACID DYE RECEPTIVE POLYCARBONAMIDE FILAMENTS ARE PREPARED BY POLYMERIZING THE POLYCARBONAMIDE FORMING MATERIALS IN THE PRESENCE OF 10-50 MOLES OF P-TOLUENESULFONIC ACID PER 10**6 GMS. OF POLYMER AND LESS THAN ABOUT 50 MOLES PER 10**6 GMS. OF A PRIMARY-TERTIARY DIAMINE.

公开(公告)号：US3558567A

公开(公告)日：1971-01-26

申请号：US3558567D

申请日：1967-12-28

Applicant: ALLIED CHEM

Inventor： TWILLEY IAN C ,  ROTH DAVID W H JR ,  LOFQUIST ROBERT A

IPC: C08G69/16 ,  C08G20/00

CPC classification number: C08G69/16

Abstract: NYLON-6 HAVING A LOW CYCLIC OLIGOMER CONTENT IS PRODUCED BY HEATING A MIXTURE OF EPSILON-CAPROLACTAM AND WATER (TOGETHER WITH PROPERTY-MODIFYING ADDITIVES AND CHAIN-TERMINATING AGENTS, IF DESIRED) TO EFFECT REACTION OF EPSILON-CAPROLACTAM AT A RATE DETERMINED BY THE MAXIMUM CONCENTRATION OF CYCLIC OLIGMERS DESIRED IN THE PRODUCT, A SLOWER RATE RESULTING IN A LOWER CYCLIC OLIGOMER CONTENT. WHEN LESS THAN ABOUT 45% OF THE EPSILON-CAPROLACTAM IS REACTED AND THE MIXTURE HAS GONE THROUGH A MAXIMUM END GROUP CONCENTRATION, THE RATE OF POLYMERIZATION CAN BE INCREASED AND EVAPORATIVE CONDITIONS CAN BE APPLIED TO REMOVE WATER AND EXCESS MONOMER WITHOUT F URTHER INCREASING THE CONCENTRATION OF CYCLIC OLIGOMERS.

公开(公告)号：US3655821A

公开(公告)日：1972-04-11

申请号：US3655821D

申请日：1969-09-03

Applicant: ALLIED CHEM ,  BARBARA E HAYES

Inventor： LOFQUIST ROBERT A ,  HAYES BRENDAN T

IPC: C08G65/332 ,  C08L77/00 ,  C08G41/04

CPC classification number: C08G65/3322 ,  C08L77/00 ,  Y10S260/17 ,  Y10S524/91 ,  Y10S525/927 ,  C08L2666/22

Abstract: A FILAMENT, HAVING ANTISTATIC PROPERTIES, COMPRISED OF A HYDROPHOBIC SYNTHETIC POLYMER HAVING MIXED THERETHROUGH ABOUT 1 TO 10 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE HYDROPHOBIC SYNTHETIC POLYMER, OF THE REACTION PRODUCT OF A POLYGLYCOL WHICH CAN BE POLYETHYLENE GLYCOL OR A BLOCK COPOLYMER OF ETHYLENE OXIDE AND PROPYLENE OXIDE CONTAINING UP TO ABOUT 30 MOLE PERCENT PROPYLENE OXIDE, SAID POLYGLYCOL HAVING A MOLECULAR WEIGHT FROM ABOUT 100 TO 15,000 AND A COMPOUND WHICH HAS THE GENERAL FORMULA:

X-CO-(CH2)N-CO-X

WHEREIN X IS HYDROXYL,-OR WHEREIN R IS LOWER ALKYL, OR HALOGEN AND N IS AN INTEGER FROM 2 TO ABOUT 20.

公开(公告)号：US3594350A

公开(公告)日：1971-07-20

申请号：US3594350D

申请日：1969-10-06

Applicant: ALLIED CHEM

Inventor： LOFQUIST ROBERT A ,  CRESCENTINI LAMBERTO ,  BALINT LASZLO J

IPC: C08G63/87 ,  C07C69/82 ,  C08G17/013

CPC classification number: C08G63/87

Abstract: THE ESTERIFICATION OF POLYCARBOXYLIC ACID WITH AN ALKYLENE GLYCOL IS DESCRIBED UNDER CONDITIONS OF DIRECT ESTERIFICATION WHEREIN THE POLYCARBOXYLIC ACID IS ESTERIFIED WITH AN ALKYLENE GLYCOL IN THE PRESENCE OF AMMONIA OR AN AMMONIUM SALT OF A DIBASIC CARBOXYLIC ACID.