Method for producing polyoxymethylene resin composition
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 11, 2020
Grant Date -
Aug 18, 2016
app pub date -
Sep 9, 2014
filing date -
Nov 21, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A polyoxymethylene resin composition from which formaldehyde is generated in a reduced amount upon molding, without carrying out a stabilization treatment for stabilizing an unstable terminal group in a crude oxymethylene copolymer. A hindered phenol-type antioxidant agent and an ethylene-(methacrylic acid) copolymer resin or an ethylene-(acrylic acid) copolymer resin or a salt thereof are melted and kneaded together to produce a polyoxymethylene resin composition without carrying out a stabilization treatment for stabilizing an unstable terminal group in a crude oxymethylene copolymer for which a polymerization catalyst is deactivated after the completion of copolymerization, and in which the unstable terminal group is not yet stabilized. When the polyoxymethylene resin composition is extrusion-molded, the discoloration of a molded product or the deterioration in properties of the molded product can be prevented for a long period of time. The resulting polyoxymethylene resin composition is suitable for forming an extrusion-molded article.
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | A | JP2015101599 | Nov 21, 2013 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
Published unexamined patent application | ポリオキシメチレン樹脂組成物の製造方法 | Jun 04, 2015 | |||
KR | B1 | KR102210354 | Sep 09, 2014 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PATENT SPECIFICATION | 폴리옥시메틸렌 수지 조성물의 제조방법 | Feb 01, 2021 | |||
CN | B | CN105555864 | Sep 09, 2014 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT FOR INVENTION | The manufacture method of polyoxymethylene resin composition | Mar 13, 2018 | |||
BR | B1 | BR112016011298 | Sep 09, 2014 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT / GRANTED PIPELINE PATENT | MÉTODO PARA PRODUÇÃO DE COMPOSIÇÃO DE RESINA DE POLIOXIMETILENO | May 17, 2022 | |||
MY | A | MY176538 | Sep 09, 2014 | Not Available | Grant |
Type : Not Available Sub-Type : Grant | |||||
GRANTED PATENT / UTILITY MODEL | METHOD FOR PRODUCING POLYOXYMETHYLENE RESIN COMPOSITION | Aug 14, 2020 | |||
EP | A1 | EP3072927 | Sep 09, 2014 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | METHOD FOR PRODUCING POLYOXYMETHYLENE RESIN COMPOSITION | Sep 28, 2016 | |||
WO | A1 | WO2015075999 | Sep 09, 2014 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | ポリオキシメチレン樹脂組成物の製造方法 | May 28, 2015 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
POLYPLASTICS CO LTD | 2-18-1 KONAN MINATO-KU TOKYO 1088280 ?1088280 |
International Classification(s)

- 2014 Application Filing Year
- C08J Class
- 1723 Applications Filed
- 1369 Patents Issued To-Date
- 79.46 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Monma, Tomohiro | Fuji, JP | 18 | 16 |
# of filed Patents : 18 Total Citations : 16 | |||
Shimoda, Akihide | Fuji, JP | 16 | 61 |
# of filed Patents : 16 Total Citations : 61 | |||
Watanabe, Kazufumi | Fuji, JP | 71 | 1032 |
# of filed Patents : 71 Total Citations : 1032 |
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Patent Citation Ranking
- 0 Citation Count
- C08J Class
- 0 % this patent is cited more than
- 5 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 11, 2028 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 11, 2032 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Date | Code | Event | Description |
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Jan 31, 2022 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Aug 07, 2018 | P | Publication | |
Jul 18, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Aug 03, 2017 | P | Published | |
Feb 03, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FITCH, JOHN;REEL/FRAME:037968/0611 Owner name: TORAY PLASTICS (AMERICA) INC., RHODE ISLAND Effective Date: Feb 03, 2016 |
Jan 31, 2016 | F | Filing |

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