ES438045A1 - Procedure for the obtaining of polyepoxidic resins. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for the obtaining of polyepoxidic resins. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES438045A1 ES438045A1 ES438045A ES438045A ES438045A1 ES 438045 A1 ES438045 A1 ES 438045A1 ES 438045 A ES438045 A ES 438045A ES 438045 A ES438045 A ES 438045A ES 438045 A1 ES438045 A1 ES 438045A1
- Authority
- ES
- Spain
- Prior art keywords
- methyl
- semi
- translation
- residue
- procedure
- 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
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Epoxy Resins (AREA)
Abstract
Procedure for obtaining polyepoxy resins, where bisglycidyl meters of formula I **(See formula)** where R represents a methyl residue or both R substituents, which are found on the same carbon atom, represent a residue - (CH2) 5; R1 signifies methyl, chlorine or bromine; R2, R3 and R4 signify hydrogen or methyl; under the condition that at most one of these three substituents can be a methyl residue; and n represents 0, 1, 2 and 3; they are reacted with semi-esters of α, β-ethylenically unsaturated dicarboxylic acids, copolymerizable with styrene and aliphatic or cycloaliphatic alcohols, monovalent, at 70-150ºC, until the acid number has reached a value of 20; then both anhydride of a saturated or unsaturated dicarboxylic acid is added so that the theoretical amount of acidity is calculated from 40 to 90; and the reaction mixture is maintained at the graduated temperature until the desired acidity is reached; characterized in that the reaction of the bisglycidyl ether with the semi-esters is carried out in the presence of 0.01 to 0.4% by weight of alkali metal oxides or hydroxides, based on the sum of bisglidyl ether + semi-ester. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742426673 DE2426673A1 (en) | 1974-06-01 | 1974-06-01 | RESIN MATERIALS SUITABLE FOR THE PRODUCTION OF THICKENING COMPRESSION COMPOUNDS WITH CHEMICAL THICKENERS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES438045A1 true ES438045A1 (en) | 1977-01-16 |
Family
ID=5917122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES438045A Expired ES438045A1 (en) | 1974-06-01 | 1975-05-30 | Procedure for the obtaining of polyepoxidic resins. (Machine-translation by Google Translate, not legally binding) |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS512794A (en) |
| BE (1) | BE829658A (en) |
| DE (1) | DE2426673A1 (en) |
| ES (1) | ES438045A1 (en) |
| FR (1) | FR2275523A1 (en) |
| NL (1) | NL7506383A (en) |
| SE (1) | SE7506153L (en) |
-
1974
- 1974-06-01 DE DE19742426673 patent/DE2426673A1/en active Pending
-
1975
- 1975-05-29 NL NL7506383A patent/NL7506383A/en unknown
- 1975-05-29 SE SE7506153A patent/SE7506153L/en not_active Application Discontinuation
- 1975-05-29 BE BE156848A patent/BE829658A/en unknown
- 1975-05-30 FR FR7516903A patent/FR2275523A1/en not_active Withdrawn
- 1975-05-30 ES ES438045A patent/ES438045A1/en not_active Expired
- 1975-05-30 JP JP6443975A patent/JPS512794A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL7506383A (en) | 1975-12-03 |
| JPS512794A (en) | 1976-01-10 |
| DE2426673A1 (en) | 1975-12-11 |
| BE829658A (en) | 1975-12-01 |
| SE7506153L (en) | 1975-12-02 |
| FR2275523A1 (en) | 1976-01-16 |
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