JPS5628211A - Resin composition for concrete placing form - Google Patents
Resin composition for concrete placing formInfo
- Publication number
- JPS5628211A JPS5628211A JP10470979A JP10470979A JPS5628211A JP S5628211 A JPS5628211 A JP S5628211A JP 10470979 A JP10470979 A JP 10470979A JP 10470979 A JP10470979 A JP 10470979A JP S5628211 A JPS5628211 A JP S5628211A
- Authority
- JP
- Japan
- Prior art keywords
- pref
- equivalent
- components
- compound
- resin composition
- 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.)
- Granted
Links
Landscapes
- Moulds, Cores, Or Mandrels (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
PURPOSE: To prepare the titled resin composition useful as a raw material resin for concrete placing forms capable of giving even a complicate concrete form in high accuracy, and having excellent releasability, heat resistance and alkali resistance, by compounding a polyisocyanate compound and an active hydrogen-containing compound at a specific ratio.
CONSTITUTION: The objective composition is prepared by mixing (A) a polyiso- cyanate compound having an average molecular weight of ≤20,000, pref. 10,000W 174, and an NCO equivalent of ≤10,000 pref. 5,000W87 (e.g. tolylene diisocyanate), and (B) a compound having active hydrogen and having an average molecular weight of ≤10,000, pref. 7,000Wseveral tens, and OH equivalent of ≤5,000, pref. 350Wsereal tens, wherein the amounts of both components are selected so as to give the average functional groups of both components of 2W4, pref. 2W3, the NCO/OH equivalent ratio of 0.5W2.0, pref. 1.0W1.7, and the average functional group equivalent of both components of 200W10,000, pref. 300W 6,000.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54104709A JPS5829965B2 (en) | 1979-08-16 | 1979-08-16 | Raw material resin composition for concrete molding formwork |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54104709A JPS5829965B2 (en) | 1979-08-16 | 1979-08-16 | Raw material resin composition for concrete molding formwork |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5628211A true JPS5628211A (en) | 1981-03-19 |
JPS5829965B2 JPS5829965B2 (en) | 1983-06-25 |
Family
ID=14388002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54104709A Expired JPS5829965B2 (en) | 1979-08-16 | 1979-08-16 | Raw material resin composition for concrete molding formwork |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5829965B2 (en) |
-
1979
- 1979-08-16 JP JP54104709A patent/JPS5829965B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5829965B2 (en) | 1983-06-25 |
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