GB1049416A - A method of hardening epoxy resins - Google Patents
A method of hardening epoxy resinsInfo
- Publication number
- GB1049416A GB1049416A GB2336364A GB2336364A GB1049416A GB 1049416 A GB1049416 A GB 1049416A GB 2336364 A GB2336364 A GB 2336364A GB 2336364 A GB2336364 A GB 2336364A GB 1049416 A GB1049416 A GB 1049416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hours
- heated
- epoxy
- borazole
- weight
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4078—Curing agents not provided for by the groups C08G59/42 - C08G59/66 boron containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
Epoxy resins are hardened by mixing intimately with 2-20%, preferably 8-12%, by weight of the resin, of B-tributylamino-N-tributyl-borazole, and progressively heating the mixture at temperatures from 100 DEG -270 DEG C. over 1 to 2 days. A pressure below atmospheric aids de-aeration during mixing. In Examples (1) an epoxy novolak from epichlorhydrin and a novolak resin and 10% by weight of the borazole are mixed at 60 DEG C., below atmospheric pressure, and heated at 140 DEG C. for 20 hours, 200 DEG C. for 3 hours, 230 DEG C. for 3 hours and at 260 DEG C. for 4 hours, (2) a glycidyl polyether from epichlorhydrin and bisphenol A and 8% by weight of the borazole are heated at 140 DEG C. for 18 hours, 200 DEG C. for 3 hours, 230 DEG C. for 3 hours and at 260 DEG C. for 4 hours, (3) an epoxy polyolefine of formula <FORM:1049416/C3/1> and 12% of the catalyst are heated at 120 DEG C. for 27 hours, 175 DEG C. for 4 hours, and at 200 DEG C. for 9 hours, and (4) an epoxy cyclopolyolefine of formula <FORM:1049416/C3/2> with 14% of the catalyst is heated at 120 DEG C. for 30 hours, 160 DEG C. for 4 hours and 200 DEG C. for 10 hours. Uses.-High temperature electrical insulation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH743963A CH406641A (en) | 1963-06-15 | 1963-06-15 | Process for hardening epoxy resins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1049416A true GB1049416A (en) | 1966-11-30 |
Family
ID=4325140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2336364A Expired GB1049416A (en) | 1963-06-15 | 1964-06-05 | A method of hardening epoxy resins |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH406641A (en) |
| DE (1) | DE1495364A1 (en) |
| GB (1) | GB1049416A (en) |
-
1963
- 1963-06-15 CH CH743963A patent/CH406641A/en unknown
-
1964
- 1964-06-05 GB GB2336364A patent/GB1049416A/en not_active Expired
- 1964-06-15 DE DE19641495364 patent/DE1495364A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH406641A (en) | 1966-01-31 |
| DE1495364A1 (en) | 1969-03-20 |
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