GB925105A - Improvements in the manufacture of resins - Google Patents
Improvements in the manufacture of resinsInfo
- Publication number
- GB925105A GB925105A GB338160A GB338160A GB925105A GB 925105 A GB925105 A GB 925105A GB 338160 A GB338160 A GB 338160A GB 338160 A GB338160 A GB 338160A GB 925105 A GB925105 A GB 925105A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gram
- heating
- formaldehyde
- boron
- cured
- 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
- C08G79/00—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule
- C08G79/14—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule a linkage containing two or more elements other than carbon, oxygen, nitrogen, sulfur and silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
There are reacted together by heating, preferably to 130 DEG -185 DEG C.: (a) phosphoric anhydride, a hydration product thereof or a dehydration product of phosphoric acid, (b) orthoboric acid, boric oxide or mixtures of them, and (c) one or more dihydric and/or trihydric phenols or a mixture of a dihydric and/or a trihydric phenol with not more than an equimolecular amount of a monohydric phenol. For every 6 gram atom of phosphorus in (a), there are 0,2-3,3, preferably 1,1-2,2, gram atom of boron in (b) and at least 0,5 gram mole of (c), the number of gram atoms of boron not exceeding the number of gram mole of (c), and the sum of the number of gram atoms of boron and the number of gram moles of (c) being 1-6,6. The components may all be heated together, or any two reacted and the third added and heating continued. When P2O5 is used as (a), the heat generated by adding a small quantity of water to the mixture will initiate the reaction. 3 hrs. heating at 180 DEG C. is usually sufficient. The thermoplastic products may be cured by heating with formaldehyde or a formaldehyde donor to at least 200 DEG C., or by heating alone to a higher temperature. The thermoplastic resins, dissolved in a solvent, dispersed in water, or without either treatment, may be mixed with e.g. asbestos fibre, mica or aluminium powder and later cured to give mouldings, laminates, surface coatings or bonding agents. Although preparation and curing are usually done separately, the resin components, fillers and, if added, formaldehyde or a formaldehyde donor, may be mixed and heated to above 200 DEG C., preferably in a mould, to give a cured product. Specification 807,851 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB338160A GB925105A (en) | 1960-01-30 | 1960-01-30 | Improvements in the manufacture of resins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB338160A GB925105A (en) | 1960-01-30 | 1960-01-30 | Improvements in the manufacture of resins |
Publications (1)
Publication Number | Publication Date |
---|---|
GB925105A true GB925105A (en) | 1963-05-01 |
Family
ID=9757262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB338160A Expired GB925105A (en) | 1960-01-30 | 1960-01-30 | Improvements in the manufacture of resins |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB925105A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2507309A (en) * | 1945-11-26 | 1950-05-09 | Larsson Gustav Allan | Centrifuge |
-
1960
- 1960-01-30 GB GB338160A patent/GB925105A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2507309A (en) * | 1945-11-26 | 1950-05-09 | Larsson Gustav Allan | Centrifuge |
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