公开(公告)号：US3804808A

公开(公告)日：1974-04-16

申请号：US25674272

申请日：1972-05-25

Applicant: UBE INDUSTRIES

Inventor： ISHII T ,  INUIZAWA Y ,  KUMAHARA H

IPC: C08G2/00 ,  C08G2/06 ,  C08G1/02

CPC classification number: C08G2/08

Abstract: IMPROVED METHOD FOR POLYMERIZING FORMALDEHYDE IN THE PRESENCE OF A METAL CHELATE COMPOUND AS CATALYST IS DESCRIBED; FORMALDEHYDE IS POLYMERIZED IN A SOLUTION OF BIS(3-PHENYLACETYLACETONE) COPPER DISSOLVED IN AN INERT ORGANIC SOLVENT AT THE CONCENTRATION OF 1X10**9 TO 5X10**7 MOLE PER LITER OF THE SOLVENT UNTIL THE CONCENTRATION OF POLYMER IN THE RESULTING SLURRY REACHES THE RANGE OF 30 TO 150 G./I.

公开(公告)号：US3803094A

公开(公告)日：1974-04-09

申请号：US27093072

申请日：1972-07-12

Applicant: UBE INDUSTRIES

Inventor： ISHII T ,  TAKIKAWA N ,  INUIZAWA Y

IPC: C08G2/22 ,  C08G2/24 ,  C08G1/16

CPC classification number: C08G2/22 ,  C08G2/24

Abstract: A PROCESS FOR REPRODUCING A FORMALYEHYDE-CYCLIC ETHER COPOLYNER HAVING A HIGH MOLECULAR WEIGHT AND IMPROVED THERMAL STABILITY IS DESCRIBED. FORMALDEHYDE AND CYCLIC ETHER ARE COPOLYMERIZED IN AN INERT ORGANIC SOLVENT IN THE PRESENCE OF A REACTION MIXTURE OF A METAL CHELATE COMPOUND WITH LEWIS ACID.

公开(公告)号：US3839497A

公开(公告)日：1974-10-01

申请号：US23465072

申请日：1972-03-14

Applicant: UBE INDUSTRIES

Inventor： ISHII T ,  YOSHIKAWA T ,  TOKUNAGA K ,  KURODA K ,  INAIKE T ,  KIDO K

IPC: C08G69/02 ,  C08L59/02 ,  C08L77/00 ,  C08G41/04

CPC classification number: C08G69/02 ,  C08L59/02 ,  C08L77/00 ,  Y10S525/927 ,  C08L59/00

Abstract: 1. A POLYACETAL COMPOSITION CONSISTING ESSENTIALLY OF: (A) A POLYACETAL; AND, (B) AT LEAST ONE POLYAMIDE HAVING A WEIGHT PERCENTAGE BETWEEN 0.01% TO 10.0% OF SAID POLYACETAL, SAID POLYAMIDE BEING A POLYCONDENSATION PRODUCT OF, (A) AT LEAST ONE COMONENT HAVING THE FORMULA H2NRNH3, WHERE R IS A GROUP SELECTED FROM THE CLASS CONSISTING OF ALIPAHTIC, ALICYCLIC, AND AROMATIC HYDROCARBON GROUPS HAVING 2 TO 20 CARBON ATOMS AND GROUPS CONSISTING OF TWO OR MORE OF SAID HYDROCARBON GROUOS COMBINED BY AN OXYGEN OR SULPHUR ATOMS, (B) AT LEAST ONE COMPONENT OF THE FORMULA XOCCH2COX, WHERE X IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROXYL GROUP, HALOGEN ATOMS AND LOWER ALKOXYL GROUPS HAVING 1 TO 6 CARBON ATOMS, AND (C) AT LEAST ONE COMPONENT HAVING THE FORMULA YCH2COX, WHERE X IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROXYL GROUP, HALOGEN ATOMS AND LOWER ALKOXY GROUS HAVING 1 TO 6 ATOMS, AND Y IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF CYANO AND CARBAMOYL GROUPS, IN AN AMOUNT OF EACH OF SAID COMPONENT (A) OF SAID COMPONENT (C), SAID SAID POLYAMIDE HAVING AND (B) OF 1 TO 30 MOLES WITH RESPECT TO 1 MOLE A MOLECULR WEIGHT OF 450 TO 5,000 SAID POLYACETAL COMPOSITION BEING DEVOID OF STABILIZERS

公开(公告)号：US3787353A

公开(公告)日：1974-01-22

申请号：US3787353D

申请日：1971-06-01

Applicant: UBE INDUSTRIES

Inventor： INAIKE T ,  KURODA K ,  ISHII T ,  YOSHIKAWA T ,  KIDO K ,  TOKUNAGA K

IPC: C08L59/00 ,  C08K5/20 ,  C08K5/315 ,  C08G51/58 ,  C08G51/60

CPC classification number: C08K5/20 ,  C08K5/315 ,  C08L59/02

Abstract: A STABILIZED POLYOXYMETHYLENE COMPOSITION WHICH COMPRISES POLYOXYMETHYLENE AND 0.01 TO 10% BY WEIGHT TO THE POLYOXYMETHYLENE OF A COMPOUND OF THE FORMULA,

R(NHCOOH2X)N

IN WHICH R IS A HYDROCARBON GROUP OF 2 TO 20 CARBONS, OR A HYDROCARBON GROUP OF 2 TO 40 CARBONS CONTAINING OXYGEN OR SULFUR AS AN INTERMEDIARY ATOM, X IS CYANO OR CARBAMOYL GROUP, AND N IS AN INTEGER OF 2 TO 6.