JPS54138058A - One-pack type elastic sealant - Google Patents
One-pack type elastic sealantInfo
- Publication number
- JPS54138058A JPS54138058A JP4687778A JP4687778A JPS54138058A JP S54138058 A JPS54138058 A JP S54138058A JP 4687778 A JP4687778 A JP 4687778A JP 4687778 A JP4687778 A JP 4687778A JP S54138058 A JPS54138058 A JP S54138058A
- Authority
- JP
- Japan
- Prior art keywords
- isocyanate
- acrylic
- parts
- elastomer
- group
- 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
Abstract
PURPOSE: To prepare the title sealant which does not contain a constituent to be evaporated, e.g. water, solvent, etc., by dehydrating an acrylic isocyanate elastomer having free isocyanate group and prepared by a specific process.
CONSTITUTION: An acrylic isocyanate elastomer having free isocyanate group is prepared by reacting (A) an acrylic low-molecular copolymer (containing 1.8W2.5 functional groups reactive with isocyanate group, in a molecule in average, and having a molecular weight of 1,500 - 80,000) obtained by reacting (a) 1 mole of an unsaturated monomer having a functional group reactive with isocyanate group with 5W500 moles of an unsaturated monomer of formula (R1 is H, CH3; R2 is 2W14C alkyl), in the presence of a polymerization initiator and a chain transfer agent, with (B) about 2 times equivalent of the above functional group, of an organic isocyanate. The objective one-pack type elastic sealant is obtained by mixing 100 parts by weight of the acrylic isocyanate elastomer with 0.1W15 parts of a reaction accelerating solvent and 30W200 parts of a filler, and dehydrating the mixture.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4687778A JPS54138058A (en) | 1978-04-19 | 1978-04-19 | One-pack type elastic sealant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4687778A JPS54138058A (en) | 1978-04-19 | 1978-04-19 | One-pack type elastic sealant |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54138058A true JPS54138058A (en) | 1979-10-26 |
JPS5748023B2 JPS5748023B2 (en) | 1982-10-13 |
Family
ID=12759573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4687778A Granted JPS54138058A (en) | 1978-04-19 | 1978-04-19 | One-pack type elastic sealant |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54138058A (en) |
-
1978
- 1978-04-19 JP JP4687778A patent/JPS54138058A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5748023B2 (en) | 1982-10-13 |
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