JPS57111347A - Urea resin molding compound - Google Patents
Urea resin molding compoundInfo
- Publication number
- JPS57111347A JPS57111347A JP18770880A JP18770880A JPS57111347A JP S57111347 A JPS57111347 A JP S57111347A JP 18770880 A JP18770880 A JP 18770880A JP 18770880 A JP18770880 A JP 18770880A JP S57111347 A JPS57111347 A JP S57111347A
- Authority
- JP
- Japan
- Prior art keywords
- urea
- base material
- precondensate
- resin molding
- molding compound
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: A urea resin molding compound with an improved coefficient of post- shrinkage and water absorption while accomplishing energy saving to a large extent, which is obtd. by compounding a solid urea precondensate, a base material and urea in a specified proportion.
CONSTITUTION: 70W80pts.wt. solid urea precondensate hereinafter described, 20W 30pts.wt. base material and 1W10pts.wt. urea are compounded. Said solid urea precondensate is obtd. by reacting urea with formaldehyde in the presence of an alkali catalyst in a reaction system contg. 13W25wt% water, and cooling and solidifying the produced resin syrup. A powder such as wood flour or crushed pulp is pref. as the base material. If necessry it is possible to compound an additive such as a curing agent, releaser or colorant.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18770880A JPS57111347A (en) | 1980-12-27 | 1980-12-27 | Urea resin molding compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18770880A JPS57111347A (en) | 1980-12-27 | 1980-12-27 | Urea resin molding compound |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57111347A true JPS57111347A (en) | 1982-07-10 |
Family
ID=16210772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18770880A Pending JPS57111347A (en) | 1980-12-27 | 1980-12-27 | Urea resin molding compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57111347A (en) |
-
1980
- 1980-12-27 JP JP18770880A patent/JPS57111347A/en active Pending
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