JPS56104980A - Polyurethane type adhesive - Google Patents

Polyurethane type adhesive

Info

Publication number
JPS56104980A
JPS56104980A JP812980A JP812980A JPS56104980A JP S56104980 A JPS56104980 A JP S56104980A JP 812980 A JP812980 A JP 812980A JP 812980 A JP812980 A JP 812980A JP S56104980 A JPS56104980 A JP S56104980A
Authority
JP
Japan
Prior art keywords
adhesive
wood veneers
polyvinylpyrrolidone
polyurethane type
water content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP812980A
Other languages
Japanese (ja)
Inventor
Yoshio Sano
Kiyomi Tagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP812980A priority Critical patent/JPS56104980A/en
Publication of JPS56104980A publication Critical patent/JPS56104980A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: An adhesive having an improved adhesive strength and being particularly suitable for bonding wood veneers and resin papers, prepared by adding a small amount of polyvinylpyrrolidone to a polyurethane type adhesive.
CONSTITUTION: To 90W95wt% polyurethane type adhesive is added 5W10wt% polyvinylpyrrolidone to obtain a modified adhesive. The modified adhesive is applied to, for example, wood veneers and a plurality of the wood veneers are assembled, placed in a mold and pressed while heating to form a composite material. The polyvinylpyrrolidone takes up water when the wood veneers have a high water content and give the water contained in the polyvinylpyrrolidone to wood veneers when they have a low water content, and therefore can maintain the water content of wood veneers at a level suitable for curing of a polyurethane adhesive. As a consequence, the peeling strength of adhesive is improved.
COPYRIGHT: (C)1981,JPO&Japio
JP812980A 1980-01-26 1980-01-26 Polyurethane type adhesive Pending JPS56104980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP812980A JPS56104980A (en) 1980-01-26 1980-01-26 Polyurethane type adhesive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP812980A JPS56104980A (en) 1980-01-26 1980-01-26 Polyurethane type adhesive

Publications (1)

Publication Number Publication Date
JPS56104980A true JPS56104980A (en) 1981-08-21

Family

ID=11684671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP812980A Pending JPS56104980A (en) 1980-01-26 1980-01-26 Polyurethane type adhesive

Country Status (1)

Country Link
JP (1) JPS56104980A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111500047A (en) * 2020-04-16 2020-08-07 东莞市雄林新材料科技股份有限公司 Medical cylinder film and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111500047A (en) * 2020-04-16 2020-08-07 东莞市雄林新材料科技股份有限公司 Medical cylinder film and preparation method thereof

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