JPS56104980A - Polyurethane type adhesive - Google Patents
Polyurethane type adhesiveInfo
- 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
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
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)
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 |
-
1980
- 1980-01-26 JP JP812980A patent/JPS56104980A/en active Pending
Cited By (1)
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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