GB1278378A - Improvements in or relating to the covering of foamed phenolic resins - Google Patents
Improvements in or relating to the covering of foamed phenolic resinsInfo
- Publication number
- GB1278378A GB1278378A GB3701570A GB3701570A GB1278378A GB 1278378 A GB1278378 A GB 1278378A GB 3701570 A GB3701570 A GB 3701570A GB 3701570 A GB3701570 A GB 3701570A GB 1278378 A GB1278378 A GB 1278378A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenolic resin
- phenol
- foamed
- sheet structure
- alkylated
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/365—Coating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
1278378 Foamed phenolic resin laminates. DYNAMIT NOBEL AG 30 July 1970 [30 July 1969] 37015/70 Heading B5N [Also in Division C3] A surface of a foamed phenolic resin is covered with a surface covering which is impervious to water vapour by impregnating a fibre-containing sheet structure which is pervious to water vapour, at least at the surface thereof which is to contact the foamed phenolic resin, with a liquid impregnant which consists of or comprises a synthetic polymer which renders the fibrecontaining sheet structure impervious to water vapour, and bringing this surface of the impregnated sheet structure into contact with a phenolic resin which is either in the course of being foamed or the foaming of which has been completed but the curing of which has not taken place, at the temperature at which foaming is taking/has taken place, and then curing the foamed phenolic resin, preferably while subjecting it to a limiting pressure of 0À01-2À0 Kp./cm.<SP>2</SP>. The phenolic resin in the foamable resin composition is produced by the condensation of 1 mol. of a phenol, alkylated phenol, polyhydric phenol or alkylated polyhydric phenol, e.g. resorcinol, pyrocatechol, a cresol or xylenol, with 1-3 mols. of an aldehyde, e.g. formaldehyde, para-formaldehyde, trioxane, acetaldehyde, furfural or hexamethylene tetramine, in an alkaline medium. The foamable phenolic resin composition contains a blowing agent, e.g. a chlorofluoromethane, n-pentane, petroleum ether, methylene dichloride, ethylene dichloride or an alkali or alkaline earth metal carbonate, and a hardener, e.g. p-toluene sulphonic, hydrochloric, sulphuric or phosphoric acid, and may also contain a modifying agent, e.g. a polyester, high-boiling ester, e.g. dibutylphthalate, or an addition product of ethylene oxide and phenol. The synthetic polymer used to impregnate the fibre-containing sheet structure may be a liquid condensation product of 1 mol. of a phenol, polyhydric phenol, alkylated phenol or alkylated polyhydricphenol with 1-3 mols. of an aldehyde, a solution or dispersion of a polyamide which may be a condensation product of a diamine and dicarboxylic acid or polymerization product of an #-aminocarboxylic acid or lactam thereof and/or a polymer of butadiene which is optionally substituted with chlorine or methyl in the 2-position and/or 3-position, or a solution or dispersion of a polyacetal. The fibre containing sheet material may be paper, e.g. millboard or soda-kraft paper, or a woven fabric or fleece comprising inorganic or organic synthetic or natural fibres. If the phenolic resin contains an anti-foaming agent, e.g. modified dimethyl polysiloxane, and two blowing agents operative in different temperature ranges the fibrous sheet structures may be impregnated with the phenolic resin which is to be foamed by introducing the phenolic resin composition into a mould lined with the fibrous sheet structures, allowing the resin composition to foam up quickly under the action of the lower boiling point blowing agent so that it wets at least the part of the fibrous sheet structure adjacent the interior of the mould and allowing the foam to collapse under the action of the anti-foaming agent and foam up again under the action of the second blowing agent. In a continuous process two webs of impregnated fibrous sheet material are fed through a double belt press and the foamable phenolic resin introduced between them.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691938665 DE1938665C3 (en) | 1969-07-30 | Process for the production of phenolic resin foams with firmly adhering water vapor impermeable fiber-containing outer layers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1278378A true GB1278378A (en) | 1972-06-21 |
Family
ID=5741335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3701570A Expired GB1278378A (en) | 1969-07-30 | 1970-07-30 | Improvements in or relating to the covering of foamed phenolic resins |
Country Status (15)
Country | Link |
---|---|
JP (1) | JPS5346865B1 (en) |
AT (1) | AT322220B (en) |
BE (1) | BE754093A (en) |
CA (1) | CA920043A (en) |
CH (1) | CH544654A (en) |
CS (2) | CS176127B2 (en) |
DK (1) | DK130223B (en) |
FI (1) | FI53583C (en) |
FR (1) | FR2053281B1 (en) |
GB (1) | GB1278378A (en) |
NL (1) | NL7011286A (en) |
NO (1) | NO132139C (en) |
PL (1) | PL79802B1 (en) |
RO (1) | RO58569A (en) |
SE (2) | SE378001B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180109A1 (en) * | 1984-10-27 | 1986-05-07 | BASF Aktiengesellschaft | Flat composite material |
WO2011160842A3 (en) * | 2010-06-25 | 2012-03-01 | Momentive Specialty Chemicals Gmbh | Method for producing sandwich construction elements |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3415714A (en) * | 1965-09-13 | 1968-12-10 | Owens Illinois Inc | Foam-paper-composition board laminate |
-
1970
- 1970-07-24 CH CH1127270A patent/CH544654A/en not_active IP Right Cessation
- 1970-07-24 RO RO6404370A patent/RO58569A/ro unknown
- 1970-07-27 NO NO291670A patent/NO132139C/no unknown
- 1970-07-28 CS CS531570A patent/CS176127B2/cs unknown
- 1970-07-28 AT AT687570A patent/AT322220B/en not_active IP Right Cessation
- 1970-07-28 CS CS838875A patent/CS176147B2/cs unknown
- 1970-07-28 PL PL14233670A patent/PL79802B1/pl unknown
- 1970-07-29 SE SE1042270A patent/SE378001B/xx unknown
- 1970-07-29 DK DK393270A patent/DK130223B/en unknown
- 1970-07-29 BE BE754093D patent/BE754093A/en unknown
- 1970-07-29 SE SE7312713A patent/SE379960B/xx unknown
- 1970-07-29 FR FR7027932A patent/FR2053281B1/fr not_active Expired
- 1970-07-29 CA CA089536A patent/CA920043A/en not_active Expired
- 1970-07-30 GB GB3701570A patent/GB1278378A/en not_active Expired
- 1970-07-30 NL NL7011286A patent/NL7011286A/xx not_active Application Discontinuation
- 1970-07-30 FI FI211270A patent/FI53583C/en active
- 1970-07-30 JP JP6646270A patent/JPS5346865B1/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0180109A1 (en) * | 1984-10-27 | 1986-05-07 | BASF Aktiengesellschaft | Flat composite material |
WO2011160842A3 (en) * | 2010-06-25 | 2012-03-01 | Momentive Specialty Chemicals Gmbh | Method for producing sandwich construction elements |
US9587393B2 (en) | 2010-06-25 | 2017-03-07 | Franz Josef Müller | Method for producing sandwich construction elements |
Also Published As
Publication number | Publication date |
---|---|
JPS5346865B1 (en) | 1978-12-16 |
DE1938665B2 (en) | 1976-09-09 |
SE378001B (en) | 1975-08-11 |
DE1938665A1 (en) | 1971-02-11 |
DK130223B (en) | 1975-01-20 |
NL7011286A (en) | 1971-02-02 |
CS176147B2 (en) | 1977-06-30 |
NO132139B (en) | 1975-06-16 |
NO132139C (en) | 1975-09-24 |
FR2053281A1 (en) | 1971-04-16 |
BE754093A (en) | 1970-12-31 |
DK130223C (en) | 1975-08-04 |
FI53583C (en) | 1978-06-12 |
SE379960B (en) | 1975-10-20 |
CS176127B2 (en) | 1977-06-30 |
FI53583B (en) | 1978-02-28 |
FR2053281B1 (en) | 1974-08-23 |
PL79802B1 (en) | 1975-06-30 |
RO58569A (en) | 1975-09-15 |
CA920043A (en) | 1973-01-30 |
CH544654A (en) | 1973-11-30 |
AT322220B (en) | 1975-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |