NO773998L - PROCEDURE FOR MANUFACTURE OF LAYER MATERIALS - Google Patents
PROCEDURE FOR MANUFACTURE OF LAYER MATERIALSInfo
- Publication number
- NO773998L NO773998L NO773998A NO773998A NO773998L NO 773998 L NO773998 L NO 773998L NO 773998 A NO773998 A NO 773998A NO 773998 A NO773998 A NO 773998A NO 773998 L NO773998 L NO 773998L
- Authority
- NO
- Norway
- Prior art keywords
- resin
- layers
- base layer
- layer
- flow
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 7
- 229920005989 resin Polymers 0.000 claims description 37
- 239000011347 resin Substances 0.000 claims description 37
- 229920003002 synthetic resin Polymers 0.000 claims description 11
- 239000000057 synthetic resin Substances 0.000 claims description 11
- 230000002745 absorbent Effects 0.000 claims description 10
- 239000002250 absorbent Substances 0.000 claims description 10
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims 1
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 201000005569 Gout Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical group C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C5/00—Skis or snowboards
- A63C5/12—Making thereof; Selection of particular materials
- A63C5/124—Selection of particular materials for the upper ski surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/07—Parts immersed or impregnated in a matrix
- B32B2305/076—Prepregs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/08—Reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2398/00—Unspecified macromolecular compounds
- B32B2398/10—Thermosetting resins
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Glass Compositions (AREA)
- Sampling And Sample Adjustment (AREA)
Description
Fremgangsmåte for fremstilling av sjiktmaterialer. Procedure for the production of layer materials.
Foreliggende oppfinnelse angår en fremgangsmåte for fremstilling av sjiktmaterialer bestående av et kunstharpiks-dynket basissjikt og ett eller to sugedyktige dekksjikt. The present invention relates to a method for producing layer materials consisting of a synthetic resin-soaked base layer and one or two absorbent cover layers.
Gjenstand for norsk søknad nr. 763524 er en fremgangsmåte for fremstilling av sjiktmaterialer bestående av et fiberforsterket basissjikt av en duromer kunstharpiks, hvilken er oppnådd ved polymerisering eller polyaddisjon, og minst et dekksjik på basis av sugedyktig materiale, hvorved sjiktene forbindes med hverandre under trykk og utherding av den duro- Subject of Norwegian application no. 763524 is a method for the production of layer materials consisting of a fiber-reinforced base layer of a duromer synthetic resin, which is obtained by polymerization or polyaddition, and at least one cover layer based on absorbent material, whereby the layers are connected to each other under pressure and curing of the duro-
mere kunstharpiks, og denne fremgangsmåte karakteriseres ved at det på det i forherdede form foreliggende basissjikt som har et kunststoffinnhold på 40 til 70%, påpresses minst et sjikt av sugedyktig materiale under samtidig og fullstendig gjennomdynking av det sugedyktige materiale fra harpikstilbudet i basissjiktet og under samtidig forbindelse og utherding av alle sjikt, hvorved harpiksandelen i basissjiktet velges,slik innen grensene 40 til 70% åt det oppnås en strøm av duromer-kunstharpiks som, målt ved et trykk på .5 kp/cm2, 150°C og 10 minutters varighet, utgjør minst 10%. For å oppnå en fullstendig gjennomdynking av dekksjiktet, er det nødvendig med et høyt harpiksinnhold og en stor harpiksstrøm for basissjiktet. Ved sterkere basissjikt og slike som, består av flere lag, fører dette til stigende harpikstap p.g.a. utpressing av harpiksen. more artificial resin, and this method is characterized by the fact that at least one layer of absorbent material is pressed onto the base layer present in hardened form, which has a plastic content of 40 to 70%, while simultaneously and completely soaking the absorbent material from the resin offered in the base layer and simultaneously connection and curing of all layers, whereby the proportion of resin in the base layer is selected so that within the limits of 40 to 70% a flow of duromer synthetic resin is obtained which, measured at a pressure of .5 kp/cm2, 150°C and a duration of 10 minutes, make up at least 10%. In order to achieve a complete impregnation of the cover layer, a high resin content and a large resin flow for the base layer are required. In the case of stronger base layers and those that consist of several layers, this leads to increasing resin loss due to extortion of the resin.
Det er nå funnet at man ved anvendelse av flerlagsbasis-sjikt for fremstilling av sjiktmaterialer, sterkt kan redusere harpikstapene hvis bare de sjikt av flerlagsbasismaterialet hvor-på det sugedyktige materialet umiddelbart blir liggende, er utstyrt med høyt harpiksinnhold og stor harpiksstrømning, imidler- It has now been found that when using a multilayer base layer for the production of layer materials, resin losses can be greatly reduced if only the layers of the multilayer base material on which the absorbent material immediately rests are equipped with a high resin content and high resin flow, although
tid ikke de derunder liggende sjikt av basissjiktet.not the underlying layers of the base layer.
Gjenstand for foreliggende oppfinnelse er således en fremgangsmåte for fremstilling av sjiktmaterialer bestående av et fiberforsterket basissjikt av en duromer, kunstharpiks og. minst et dekksjikt på basis av sugedyktig materiale, hvorved basissjiktet som foreligger i forherdet form og har et kunstharpiksinnhold på fra 40 til 70%, presses sammen med dekksjiktet av sugedyktig materiale under samtidig og fullstendig gjennomdynkning av det sistnevnte fra harpikstilbudet i basissjiktet og under forbindelse og avherding av alle.-sj ikt, og hvorved harpiksandelen i basissjiktet velges slik innen grensene 40 til 70% at det oppnås en strømning av duromer kunstharpiks som ved et trykk på 5 kp/cm<2>og ved 150°C og 10 minutters varighet utgjør minst 10%, og oppfinnelsen karakteriseres ved at basissjiktet består av flere lag og at bare de sjikt som kommer til å ligge mot dekksjiktene har det nødvendige harpiksinnhold på 40 til 70% og den nødvendige harpiksstrømning på minst 10%, og at harpiksinnholdet og har-piksstrømningen i de andre lag ligger under disse verdier. The object of the present invention is thus a method for the production of layer materials consisting of a fibre-reinforced base layer of a duromer, synthetic resin and. at least one cover layer based on absorbent material, whereby the base layer, which is in pre-cured form and has a synthetic resin content of from 40 to 70%, is pressed together with the cover layer of absorbent material while simultaneously and completely soaking the latter from the resin offered in the base layer and under connection and hardening of all layers, and whereby the proportion of resin in the base layer is chosen such that within the limits of 40 to 70%, a flow of duromer synthetic resin is achieved which at a pressure of 5 kp/cm<2> and at 150°C and a duration of 10 minutes is at least 10%, and the invention is characterized by the fact that the base layer consists of several layers and that only the layers that will lie against the cover layers have the required resin content of 40 to 70% and the required resin flow of at least 10%, and that the resin content and has - the peak flow in the other layers is below these values.
Vevnader, flor: og andre fiberprodukter som danner de ytre lag av grunnsjiktet, blir impregnert med den nødvendige mengde kunstharpiks slik at det er tilstede et tilstrekkelig harpikstilbud ved sammenpressing med dekksjiktene for således Woven fabrics, flor: and other fiber products that form the outer layers of the base layer are impregnated with the required amount of synthetic resin so that there is a sufficient supply of resin when compressed with the cover layers so that
fullstendig å g jennomtrenge dlskksgiktene? og å belegge disse. Vanligvis er 40 til 50% harpiks tilstrekkelig. Mengden avhenger av "strømningen" for den angjeldende harpiks. Denne strømning må ved pressbetingelser på 5 kp/cm<2>ved 150°C og en varighet på 10 minutter, minst utgjøre 10% for å oppnå virkningen ifølge oppf innels en. completely to g penetrate the gouts of dlskk? and to coat these. Usually 40 to 50% resin is sufficient. The amount depends on the "flow" of the resin in question. At pressure conditions of 5 kp/cm<2> at 150°C and a duration of 10 minutes, this flow must at least amount to 10% in order to achieve the effect according to the invention.
Pressingene skjer under konvensjonelle betingelser for fremstillingen av slike laminater, f.eks. er det mulig å anvende et trykk på 5 til 15 kp/cm<2>ved 120-160°C. The pressing takes place under conventional conditions for the production of such laminates, e.g. is it possible to apply a pressure of 5 to 15 kp/cm<2>at 120-160°C.
Valget av forholdet mellom harpiksandel og fibermatériale i det ytterste lag i grunnsjiktet skal garantere at det ved pressing er tilstede tilstrekkelig harpiks til fullstendig å ; gjennomtrenge dekksjiktet og å gi et feilfritt harpikssjikt på overflaten. Både styrken., og sugedyktigheten for dekks jiktet og også! strømnings evnen-f br 'harpiksen er av betydning for oppnåelse av oppfinnelsen mål. Ved anvendelse av dekorative baner av papir, flor. eller lignende stoffer, f.eks. fargede harpikser, The choice of the ratio between resin proportion and fiber material in the outermost layer of the base layer must guarantee that sufficient resin is present during pressing to completely ; penetrate the cover layer and to provide a flawless resin layer on the surface. Both the strength, and the absorbency of the tire's thickness and also! The flowability of the resin is important for achieving the invention's goal. When using decorative webs of paper, flor. or similar substances, e.g. colored resins,
kan man oppnå en hvilken som helst ønsket overflateeffekt.any desired surface effect can be achieved.
De enkelte lag i grunnsjiktet består fortrinnsvis av glassfibre, som imidlertid også helt eller delvis kan være er-stattet av karbonfibre og som i konstruksjon kan foreligge i form av vevnader, flor og lignende. Dekksjiktene kan fremfor: alt, bestå av papir, sugedyktig flor av bomull eller galss, samt også blandingsflor. The individual layers in the base layer preferably consist of glass fibres, which, however, can also be completely or partially replaced by carbon fibers and which in construction can be in the form of woven seams, flounces and the like. The cover layers can, rather than anything, consist of paper, absorbent cotton or galss fleece, as well as mixed fleece.
Som duromer og ved polymerisering eller polyaddisjon oppnådd, kunstharpiks, skal fremfor alt nevnes epoksyharpikser og umettede polyesterharpikser, spesielt slike som er modifisert med diallylftalat. As duromers and, by polymerization or polyaddition, synthetic resins, epoxy resins and unsaturated polyester resins, especially those modified with diallyl phthalate, should be mentioned above all.
De anvendte duromere harpikser kan være av forskjellig kjemisk oppbygning, hvorved man likeledes kan oppnå en. for-: skjellig flytoppførsel for de forskjellige sjikt, idet strømningen fra basissjiktet kan bremses og/eller den for dekksjiktet fremmes. F.eks. blir denne virkning allerede oppnådd når man ved samme harpikstype anvender forskjellige herdersystemer, det er imidlertid også mulig å variere arten av harpiksen selv, idet man for basissjiktet anvender en umettet polyesterharpiks og for dekksjiktet en epoksyharpiks eller omvendt. The duromeric resins used can be of different chemical composition, whereby one can likewise achieve a. different flow behavior for the different layers, as the flow from the base layer can be slowed down and/or that for the cover layer can be promoted. E.g. this effect is already achieved when different hardener systems are used for the same type of resin, however, it is also possible to vary the nature of the resin itself, using an unsaturated polyester resin for the base layer and an epoxy resin for the cover layer or vice versa.
Fordelen ved foreliggende oppfinnelse ligger deri at det også for fremstilling av tykkere laminater kun er nødvendig med et impregneringstrinn uten at det derved opptrer en ukontrollert harpiksutpressing under pressingen. Overflaten for laminatet blir herved så glatt og feilfri at en avsliping for påklebing av en dekkfolie ikke er nødvendig. The advantage of the present invention lies in the fact that, even for the production of thicker laminates, only an impregnation step is necessary without an uncontrolled resin extrusion occurring during pressing. The surface of the laminate is thus so smooth and fault-free that sanding for the application of a cover foil is not necessary.
Oppfinnelsen skal illustreres nærmere under henvisning til de følgende eksempler. The invention shall be illustrated in more detail with reference to the following examples.
Eksempel 1Example 1
Som basissjikt impregneres som lag 1, en unidireksjonell glassilkevevnad på 500 g/m 2 med ca. 35% av en epoksyharpiks (prepreg) og harpiksstrømningen innstilles til 1-3%. Som lag 2 impregneres en glassvevnad med ca. 50% av en epoksyharpiks og harpiksstrømmen innstilles til 10-15%. Begge disse prepregs blir presset sammen med et sugedyktig og farget a-cellulosepapir av 80 g/m ved ca. 140°C og 5 kp/cm , slik at a-cellulosepapiret forbindes med lag 2 og dette med lag 1. Det etter avkjøling fra pressen uttatte sjiktmateriale består av et ca. 0,85 mm glass-fiberarmert kunststoffsjikt (GFK-sjikt) og et ca. 0,15 mm tykk dekksj ikt. As a base layer, a unidirectional glass silk fabric of 500 g/m 2 is impregnated as layer 1 with approx. 35% of an epoxy resin (prepreg) and the resin flow is set to 1-3%. As layer 2, a glass fabric is impregnated with approx. 50% of an epoxy resin and the resin flow is set to 10-15%. Both of these prepregs are pressed together with an absorbent and colored a-cellulose paper of 80 g/m at approx. 140°C and 5 kp/cm, so that the a-cellulose paper is connected to layer 2 and this to layer 1. The layer material removed from the press after cooling consists of an approx. 0.85 mm glass-fibre reinforced plastic layer (GRP layer) and an approx. 0.15 mm thick cover layer.
Eksempel 2Example 2
En unidireksjonell glassilkevevnad på 520 g/m 2 impregneres med en epoksyharpiks på basis av digylcidyleteren av bisfenol A og diaminodifenylmetan som herder på en slik måte at det oppnås en prepreg med et harpiksinnhold på 3 5% og en strømning på 3%. En andre unidireksjonell glassilkevevnad på 520 g/m<2>impregneres med en epoksyharpiks på basis av diglycidyleteren av bisfenol A som bringes til reaksjon med dicyandiamid som herder og dimetylbenzylamin som akselerator. Harpiksinnholdet for denne prepreg instilles til 45% og strømningen til 15%. A unidirectional glass silk fabric of 520 g/m 2 is impregnated with an epoxy resin based on the digylcidyl ether of bisphenol A and diaminodiphenylmethane which cures in such a way that a prepreg with a resin content of 35% and a flow of 3% is obtained. A second unidirectional glass silk fabric of 520 g/m<2> is impregnated with an epoxy resin based on the diglycidyl ether of bisphenol A which is reacted with dicyandiamide as hardener and dimethylbenzylamine as accelerator. The resin content for this prepreg is set to 45% and the flow to 15%.
Begge disse sjikt presses nå sammen med et farget 160 g a-cellulosepapir ved ca. 150°C og 5 kp/cm presstrykk på en slik måte at a-cellulosepapiret forbindes med den andre, harpiksrikere og stømningsdyktigere prepreg og denne sistnevnte med den har-piksfattigere og mindre strømningsdyktige prepreg. Sjiktmaterialet som tas ut av pressen består av et ca. 0,8 mm tykt GFK-sjikt og et 0,2 mm tykt dekksjikt. Both of these layers are now pressed together with a colored 160 g a-cellulose paper at approx. 150°C and 5 kp/cm press pressure in such a way that the α-cellulose paper is connected to the second, resin-richer and more flowable prepreg and this latter with the resin-poorer and less flowable prepreg. The layer material that is removed from the press consists of approx. 0.8 mm thick GRP layer and a 0.2 mm thick cover layer.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762659011 DE2659011A1 (en) | 1976-12-27 | 1976-12-27 | METHOD FOR MANUFACTURING LAMINATE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO773998L true NO773998L (en) | 1978-06-28 |
Family
ID=5996745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO773998A NO773998L (en) | 1976-12-27 | 1977-11-22 | PROCEDURE FOR MANUFACTURE OF LAYER MATERIALS |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5382873A (en) |
| CA (1) | CA1083939A (en) |
| CH (1) | CH609910A5 (en) |
| DE (1) | DE2659011A1 (en) |
| FI (1) | FI773362A (en) |
| FR (1) | FR2375038A2 (en) |
| NO (1) | NO773998L (en) |
| SE (1) | SE7714360L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6375788B1 (en) * | 1996-07-16 | 2002-04-23 | Premark Rwp Holdings, Inc. | Method of coating melamine resin on laminating paper |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB453648A (en) * | 1935-02-14 | 1936-09-14 | George Crawford Tyce | Improvements in or relating to the manufacture of decorative fibrous sheet material and plaster board |
| GB1079835A (en) * | 1963-10-11 | 1967-08-16 | De La Rue Thomas & Co Ltd | Improvements in or relating to the printing of plastics articles |
| CH512626A (en) * | 1969-07-07 | 1971-09-15 | Ciba Geigy Ag | Process for the production of prepregs |
| BE793637A (en) * | 1972-01-14 | 1973-05-02 | Cartiere Ambrogio Binda Spa | PROCESS FOR THE CONTINUOUS MANUFACTURING OF MULTI-LAYER DECORATIVE MATERIAL |
-
1976
- 1976-12-27 DE DE19762659011 patent/DE2659011A1/en not_active Withdrawn
-
1977
- 1977-11-09 FI FI773362A patent/FI773362A/en not_active Application Discontinuation
- 1977-11-22 NO NO773998A patent/NO773998L/en unknown
- 1977-12-02 FR FR7736296A patent/FR2375038A2/en active Granted
- 1977-12-16 CA CA293,223A patent/CA1083939A/en not_active Expired
- 1977-12-16 SE SE7714360A patent/SE7714360L/en unknown
- 1977-12-27 CH CH1604977A patent/CH609910A5/en not_active IP Right Cessation
- 1977-12-27 JP JP15674177A patent/JPS5382873A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE7714360L (en) | 1978-06-28 |
| DE2659011A1 (en) | 1978-07-06 |
| FI773362A (en) | 1978-06-28 |
| FR2375038B2 (en) | 1981-08-07 |
| FR2375038A2 (en) | 1978-07-21 |
| CH609910A5 (en) | 1979-03-30 |
| JPS5382873A (en) | 1978-07-21 |
| CA1083939A (en) | 1980-08-19 |
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