Patent US4061992A successfully refreshed from Google Patents.
Patent US3877967A successfully refreshed from Google Patents.
US3877967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving the strength of adhesion of cellulosic coverings to phenolic resin foam materials
Assignee: Individual
•
Filing: 1972-10-30
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Granted: 1975-04-15
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Expires: 1992-10-30
Abstract
Abstract A method for improving the strength of adhesion of a fibrous covering material to a phenolic resin foam which comprises treating the fibrous covering material, on at least the side which is to come in contact with the phenolic resin foam, with a high boiling paraffinic hydrocarbon or chlorinated hydrocarbon and thereafter foaming a phenolic resin foam in contact with the side of the fibrous covering material treated with the paraffinic hydrocarbon or chlorinated hydrocarbon.
Inventors
- 👤 Hans Junger
- 👤 Franz Weissenfels
- 👤 Wolfgang Pungs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:10
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; C; C08; C08J; C08J5/00; C08J5/12; B32B5/18; C08J9/00; C08J9/36; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/04; B32B2260/046; B32B2262/00; B32B2262/06; B32B2262/062; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0285; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
29 words
A METHOD FOR IMPROVING THE STRENGTH OF ADHESION OF A FIBROUS COVERING MATERIAL COMPOSED OF CELLULOSIC FIBERS TO A PHENOLIC RESIN WHICH COMPRISES PRETREATING THE FIBROUS COVERING MATERIAL WITH:
Claim 2
Independent Claim
29 words
A METHOD FOR IMPROVING THE STRENGTH OF ADHESION OF A FIBROUS COVERING MATERIAL COMPOSED OF CELLULOSIC FIBERS TO A PHENOLIC RESIN WHICH COMPRISES PRETREATING THE FIBROUS COVERING MATERIAL WITH:
Claim 3
Dependent Claim
18 words
A FLUID PARAFFIN HYDROCARBON HAVING A FLASH POINT ABOVE 150*C AND A SOLIDIFICATION POINT OF AT LEAST 105*C;
Claim 4
Dependent Claim
18 words
A FLUID PARAFFIN HYDROCARBON HAVING A FLASH POINT ABOVE 150*C AND A SOLIDIFICATION POINT OF AT LEAST 105*C;
Claim 5
Dependent Claim
9 words
A SOLUTION OF A HYDROCARBON NAMED UNDER (1) ABOVE;
Claim 6
Dependent Claim
9 words
A SOLUTION OF A HYDROCARBON NAMED UNDER (1) ABOVE;
Claim 7
Dependent Claim
9 words
A solution of a hydrocarbon named under (1) above;
Claim 8
Dependent Claim
9 words
A solution of a hydrocarbon named under (1) above;
Claim 9
Dependent Claim
43 words
A method according to claim 1 wherein the fibrous covering material is treated with a paraffinic hydrocarbon which is normally solid at room temperature, has a boiling point above 150*C, has a softening point of 105*C, and has a flash point above 150*C.
Claim 10
Dependent Claim
18 words
A fluid, unctuous or solid chlorinated paraffin having a chlorine content of 10 to 75% by weight; or
Claim 11
Dependent Claim
18 words
A fluid, unctuous or solid chlorinated paraffin having a chlorine content of 10 to 75% by weight; or
Claim 12
Dependent Claim
13 words
A mixture of hydrocarbons and chlorinated hydrocarbons under paragraphs (1) and (2) above.
Claim 13
Dependent Claim
13 words
A mixture of hydrocarbons and chlorinated hydrocarbons under paragraphs (1) and (2) above.
Claim 14
Dependent Claim
40 words
A method according to claim 1 wherein the fibrous covering material is treated with a paraffinic hydrocarbon which is fluid or unctuous at room temperature and which has a boiling point above 250*C and a flash point higher than 150*C.
Claim 15
Dependent Claim
17 words
A fluid, unctuous or solid chlorinated paraffin having a chlorine content of 10 to 75% by weight;
Claim 16
Dependent Claim
17 words
A fluid, unctuous or solid chlorinated paraffin having a chlorine content of 10 to 75% by weight;
Claim 17
Dependent Claim
17 words
A FLUID, UNCTUOUS OR SOLID CHLORINATED PARAFFIN HAVING A CHLORINE CONTENT OF 10 TO 75% BY WEIGHT;
Claim 18
Dependent Claim
17 words
A FLUID, UNCTUOUS OR SOLID CHLORINATED PARAFFIN HAVING A CHLORINE CONTENT OF 10 TO 75% BY WEIGHT;
Claim 19
Dependent Claim
14 words
A CHLORINATED PARAFFIN UNDER PARAGRAPH (3) ABOVE IN SOLUTION FROM OR MELTED FORM; OR
Claim 20
Dependent Claim
14 words
A CHLORINATED PARAFFIN UNDER PARAGRAPH (3) ABOVE IN SOLUTION FROM OR MELTED FORM; OR
Claim 21
Dependent Claim
14 words
A chlorinated paraffin under paragraph (3) above in solution form or melted form; or
Claim 22
Dependent Claim
14 words
A chlorinated paraffin under paragraph (3) above in solution form or melted form; or
Claim 23
Dependent Claim
29 words
A method according to claim 1 wherein the covering material is impregnated with 0.5 to 40 weight percent, based upon the weight of the covering material, with paraffinic hydrocarbon.
Claim 24
Dependent Claim
18 words
Method according to claim 1 wherein the covering material is impregnated with a solution of a paraffinic hydrocarbon.
Claim 25
Dependent Claim
86 words
A mixture of hydrocarbons and chlorinated hydrocarbons under paragraphs (1) and (3) above, on the side of the covering material which is to be in contact with the phenolic resin foam, applying theragainst a foamable phenolic resin mixture, foaming said phenolic resin mixture and hardening and setting the foam to obtain an article of a phenolic resin and a fibrous covering material Having disposed in the region of the interface at least one of the hydrocarbons or chlorinated hydrocarbons described in paragraphs (1) through (5) above.
Claim 26
Dependent Claim
86 words
A mixture of hydrocarbons and chlorinated hydrocarbons under paragraphs (1) and (3) above, on the side of the covering material which is to be in contact with the phenolic resin foam, applying theragainst a foamable phenolic resin mixture, foaming said phenolic resin mixture and hardening and setting the foam to obtain an article of a phenolic resin and a fibrous covering material Having disposed in the region of the interface at least one of the hydrocarbons or chlorinated hydrocarbons described in paragraphs (1) through (5) above.
Claim 27
Dependent Claim
86 words
A MIXTURE OF HYDROCARBON AND CHLORINATED HYDROCARBONS UNDER PARAGRAPHS (1) AND (3) ABOVE, ON THE SIDE OF THE COVERING MATERIAL WHICH IS TO BE IN CONTACT WITH THE PHENOLIC RESIN FOAM, APPLYING THERAGAINST A FOAMABLE PHENOLIC RESIN MIXTURE, FOAMING SAID PHENOLIC RESIN MIXTURE AND HARDENING AND SETTING THE FOAM TO OBTAIN AN ARTICLE OF A PHENOLIC RESIN AND A FIBROUS COVERING MATERIAL HAVING DISPOSED IN THE REGION OF THE INTERFACE AT LEAST ONE OF THE HYDROCARBONSS OR CHLORINATED HYDROCARBONS DESCRIBED IN PARAGRAPHS (1) THROUGH (5) ABOVE.
Claim 28
Dependent Claim
86 words
A MIXTURE OF HYDROCARBON AND CHLORINATED HYDROCARBONS UNDER PARAGRAPHS (1) AND (3) ABOVE, ON THE SIDE OF THE COVERING MATERIAL WHICH IS TO BE IN CONTACT WITH THE PHENOLIC RESIN FOAM, APPLYING THERAGAINST A FOAMABLE PHENOLIC RESIN MIXTURE, FOAMING SAID PHENOLIC RESIN MIXTURE AND HARDENING AND SETTING THE FOAM TO OBTAIN AN ARTICLE OF A PHENOLIC RESIN AND A FIBROUS COVERING MATERIAL HAVING DISPOSED IN THE REGION OF THE INTERFACE AT LEAST ONE OF THE HYDROCARBONSS OR CHLORINATED HYDROCARBONS DESCRIBED IN PARAGRAPHS (1) THROUGH (5) ABOVE.
Claim 29
Dependent Claim
21 words
Method according to claim 1 wherein the covering material is impregnated with a paraffinic hydrocarbon in the form of a melt.
Claim 30
Dependent Claim
59 words
A coated article comprising a layer of a phenolic resin foam and a cellulosic fibrous covering material, said fibrous covering material impregnated with 0.5 to 40 weight percent of a high boiling paraffinic hydrocarbon or chlorinated hydrocarbon having a chlorine content of 10-75% by weight on the side of the covering material in contact with said phenolic resin foam.
Claim 31
Dependent Claim
59 words
A coated article comprising a layer of a phenolic resin foam and a cellulosic fibrous covering material, said fibrous covering material impregnated with 0.5 to 40 weight percent of a high boiling paraffinic hydrocarbon or chlorinated hydrocarbon having a chlorine content of 10-75% by weight on the side of the covering material in contact with said phenolic resin foam.
Claim 32
Dependent Claim
34 words
A coated article comprising a layer of a phenolic resin foam and a cellulosic covering material, wherein the fibrous covering material is impregnated with 0.5 to 40 weight percent of an agent which is:
Claim 33
Dependent Claim
34 words
A coated article comprising a layer of a phenolic resin foam and a cellulosic covering material, wherein the fibrous covering material is impregnated with 0.5 to 40 weight percent of an agent which is:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |