IL42000A - Method of preparation of rubber-modified aminoplast moulding composition - Google Patents
Method of preparation of rubber-modified aminoplast moulding compositionInfo
- Publication number
- IL42000A IL42000A IL42000A IL4200073A IL42000A IL 42000 A IL42000 A IL 42000A IL 42000 A IL42000 A IL 42000A IL 4200073 A IL4200073 A IL 4200073A IL 42000 A IL42000 A IL 42000A
- Authority
- IL
- Israel
- Prior art keywords
- rubber
- powder
- moulding composition
- carboxylated
- formaldehyde resin
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
1417421 Rubber - containing aminoplast moulding compositions BRITISH INDUSTRIAL PLASTICS Ltd 5 April 1973 [11 April 1972] 16737/72 Heading C3R An aminoplast moulding composition is obtained by mixing an aminoplast resin syrup with a rubber latex and drying the mixture to form a powder wherein the proportion of rubber is preferably up to 30 wt. per cent of the aminoplast resin, more preferably 2-15%. A filler, e.g. alpha-cellulose and/or a curing catalyst and/or rubber cross-linking agent may be compounded with the powder, or the filler may be added before the drying step. In the examples a melamine - formaldehyde syrup is mixed with 5 p.h.r. (solids basis) of a 50% carboxylated styrene-butadiene latex or 10 p.h.r. of a carboxylated acrylonitrile-butadiene latex and spray-dried; the product powders are compounded with phthalic anhydride, ZnO, stearic acid or sulphur, dicumyl peroxide and zinc stearate, extruded as sheets, kibbled and granulated to give moulding compositions.
[GB1417421A]
Claims (12)
1. A method of manufacturing a thermosetting aminoplast moulding composition, comprising mixing together an aqueous amino-formaldehyde resin syrup and a latex of a carboxylated rubber, and spray drying the resultant mixture to produce a powder having a rubber content of from 2 to 30% by weight based on the weight of the synthetic amino-formaldehyde resin therein.
2. A method according to Claim 1, wherein the powder has a rubber content within the range from 2 to 15% by weight based on the weight of the synthetic amino-formaldehyde resin.
3. A method according to any one of the preceding claims wherein the powder is compounded with a catalyst for the amino— formaldehyde and for rubber, in a compounding stage.
4. method according to Claim 3, wherein a rubber cross-linking agent is incorporated at the compounding stage.
5. A method according to Claim 3 or Claim 4, wherein the compounding stage is effected on differential rolls to produce a sheet.
6. A method according to Claim 5, wherein the sheet is kibbled and granulated.
7. A method according to any one of the preceding claims wherein the rubbe is selected from carboxylated acrylonitrile butadiene rubbers and carboxylated styrene-butadiene rubbers.
8. A method according to any one of the preceding claims wherein the synthetic amino- ormaldehyde resin is a melamine-formaldehyde resin. 42000/2
9. A method according to any one of the preceding claims wherei a filler is incorporated in the resultant mixture prio to drying, or is mixed with the powder before or during compounding.
10. » A method of manufacturing a synthetic thermosetting aminoplast moulding composition, substantially as hereinbefore described with reference to any one of the Examples.
11. A synthetic thermosetting aminoplast moulding compositio produced by a metho according to any one of the preceding claims.
12. Mouldings produced from a moulding composition as claimed in Claim 11. HE:CB v
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1673772A GB1417421A (en) | 1972-04-11 | 1972-04-11 | Rubber aminoplast mouldings compositions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL42000A0 IL42000A0 (en) | 1973-06-29 |
| IL42000A true IL42000A (en) | 1976-10-31 |
Family
ID=10082755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL42000A IL42000A (en) | 1972-04-11 | 1973-04-10 | Method of preparation of rubber-modified aminoplast moulding composition |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS523670B2 (en) |
| AT (1) | AT329868B (en) |
| BE (1) | BE798097A (en) |
| CA (1) | CA999396A (en) |
| CH (1) | CH592144A5 (en) |
| DE (1) | DE2318258A1 (en) |
| ES (1) | ES413572A1 (en) |
| FR (1) | FR2179921B1 (en) |
| GB (1) | GB1417421A (en) |
| IL (1) | IL42000A (en) |
| IT (1) | IT980139B (en) |
| NL (1) | NL7304980A (en) |
| ZA (1) | ZA732469B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS561332B2 (en) * | 1974-04-16 | 1981-01-13 | ||
| US4109043A (en) | 1977-02-11 | 1978-08-22 | Formica Corporation | Low pressure melamine resin laminates |
| US4094846A (en) | 1977-02-11 | 1978-06-13 | Formica Corporation | Low pressure melamine resins containing elastomers |
| US4094847A (en) | 1977-02-11 | 1978-06-13 | Formica Corporation | Elastomer modified melamine resins |
| FR2424938A1 (en) * | 1978-05-02 | 1979-11-30 | Formica Corp | Melamine formaldehyde! resin used in decorative laminates - mixed with ethylene! vinyl! chloride copolymer or polyurethane elastomer |
| JPS5739032U (en) * | 1980-08-18 | 1982-03-02 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR973745A (en) * | 1947-10-16 | 1951-02-14 | American Cyanamid Co | Improvements relating to essentially homogeneous hot-moldable compositions |
| SE375785B (en) * | 1969-02-25 | 1975-04-28 | British Industrial Plastics |
-
1972
- 1972-04-11 GB GB1673772A patent/GB1417421A/en not_active Expired
-
1973
- 1973-04-10 CA CA168,333A patent/CA999396A/en not_active Expired
- 1973-04-10 FR FR7312890A patent/FR2179921B1/fr not_active Expired
- 1973-04-10 CH CH510173A patent/CH592144A5/xx not_active IP Right Cessation
- 1973-04-10 NL NL7304980A patent/NL7304980A/xx not_active Application Discontinuation
- 1973-04-10 IL IL42000A patent/IL42000A/en unknown
- 1973-04-10 ZA ZA732469A patent/ZA732469B/en unknown
- 1973-04-10 IT IT49333/73A patent/IT980139B/en active
- 1973-04-11 AT AT319773A patent/AT329868B/en not_active IP Right Cessation
- 1973-04-11 JP JP48041199A patent/JPS523670B2/ja not_active Expired
- 1973-04-11 BE BE129918A patent/BE798097A/en unknown
- 1973-04-11 DE DE2318258A patent/DE2318258A1/en active Pending
- 1973-04-11 ES ES413572A patent/ES413572A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2318258A1 (en) | 1973-10-31 |
| JPS4947458A (en) | 1974-05-08 |
| JPS523670B2 (en) | 1977-01-29 |
| IT980139B (en) | 1974-09-30 |
| FR2179921B1 (en) | 1976-06-11 |
| ATA319773A (en) | 1975-08-15 |
| FR2179921A1 (en) | 1973-11-23 |
| ZA732469B (en) | 1974-11-27 |
| AT329868B (en) | 1976-06-10 |
| AU5431273A (en) | 1974-10-10 |
| CH592144A5 (en) | 1977-10-14 |
| ES413572A1 (en) | 1976-05-16 |
| CA999396A (en) | 1976-11-02 |
| BE798097A (en) | 1973-07-31 |
| IL42000A0 (en) | 1973-06-29 |
| GB1417421A (en) | 1975-12-10 |
| NL7304980A (en) | 1973-10-15 |
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