Patent US4423112A successfully refreshed from Google Patents.
US4423112A
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Impregnating agent for materials containing cellulose
Assignee: Dynamit Nobel AG
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Filing: 1980-12-08
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Granted: 1983-12-27
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Expires: 2000-12-08
Abstract
Abstract An impregnating agent for a cellulose-containing material, comprising (a) An alkyltrialkoxysilane of the formula R Si (OR') 3 in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) Chelate of alcoholate of tin or of a metal of the third main group or fourth or fifth secondary group of the periodic system of the elements, and/or optionally (c) Silicic acid ester, and a method for water-proofing cellulosic materials by contacting the same with such impregnating agent.
Inventors
- 👤 Bruno Luthringshauser
- 👤 Claus Lindzus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:04
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/16; D21H17/00; D21H17/03; D21H17/05; D21H17/13; D21H17/63; D21H17/71; D21H17/74; B; B27; B27K; B27K2240/00; B27K2240/70; B27K3/00; B27K3/34; B27K3/50; B27K3/52; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T428/31504; Y10T428/31971; Y10T428/31993; Y10T428/4935; Y10T428/662
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
121 words
An impregnating agent for a cellulose article comprising (a) An alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' and alkyl moiety of 1 to 4 carbon atoms, and (b) A chelate of a metal of the third main group or fourth or fifth secondary group of the periodic system of the elements, wherein component (a) is present in the mixture in an amount between 5 and 99.5% by-weight and component (b) is present in said mixture in an amount between 0.5 and 95 wt.-%, said alkyltrialkoxysilane and said chelate being present in amounts effective to produce an impregnating agent which has a waterproofing action on cellulose.
Claim 2
Dependent Claim
121 words
An impregnating agent for a cellulose article comprising (a) An alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' and alkyl moiety of 1 to 4 carbon atoms, and (b) A chelate of a metal of the third main group or fourth or fifth secondary group of the periodic system of the elements, wherein component (a) is present in the mixture in an amount between 5 and 99.5% by-weight and component (b) is present in said mixture in an amount between 0.5 and 95 wt.-%, said alkyltrialkoxysilane and said chelate being present in amounts effective to produce an impregnating agent which has a waterproofing action on cellulose.
Claim 3
Dependent Claim
31 words
An impregnating agent according to claim 1, wherein said chelate is a chelate of titanium, vanadium, zirconium or aluminum and said titanium, vanadium, zirconium or aluminum is chelated with acetyl acetonate.
Claim 4
Dependent Claim
20 words
An impregnating agent according to claim 1, wherein the amount of the alkyltrialkoxysilane is between 40 and 98 weight percent.
Claim 5
Dependent Claim
13 words
An impregnating agent according to claim 1, wherein said alkyl trialkoxysilane is octyltriethoxysilane.
Claim 6
Dependent Claim
13 words
An impregnating agent according to claim 1, wherein said alkyl trialkoxysilane is isobutyltrimethoxysilane.
Claim 7
Dependent Claim
13 words
An impregnating agent according to claim 1, additionally containing an silicic acid ester.
Claim 8
Dependent Claim
40 words
An impregnating agent according to claim 6, wherein the combined amount of components (b) and the silicic acid ester is between 2 and 40 weight percent, based on the combined weight of components (a), (b) and the silicic acid ester.
Claim 9
Dependent Claim
12 words
An impregnating agent according to claim 1, additionally containing an inert solvent.
Claim 10
Dependent Claim
12 words
An impregnating agent according to claim 1, wherein said solvent is ethanol.
Claim 11
Dependent Claim
118 words
An impregnating agent for a cellulose article comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) a chelate or alcholoate of a metal of the third main group of the periodic system of the elements, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-%, the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 12
Dependent Claim
118 words
An impregnating agent for a cellulose article comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) a chelate or alcholoate of a metal of the third main group of the periodic system of the elements, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-%, the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 13
Dependent Claim
145 words
An impregnating agent for a cellulose article comprising: (a) An alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) a metallic acid ester of the formula Me.sup.III (OR).sub.3 wherein Me III represents a metal of the third main group of the periodic table and R represents an alkyl moiety of 1 to 8 carbon atoms or an oligomer thereof with up to 10 Me--O--Me units, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-%, the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 14
Dependent Claim
145 words
An impregnating agent for a cellulose article comprising: (a) An alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) a metallic acid ester of the formula Me.sup.III (OR).sub.3 wherein Me III represents a metal of the third main group of the periodic table and R represents an alkyl moiety of 1 to 8 carbon atoms or an oligomer thereof with up to 10 Me--O--Me units, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-%, the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 15
Dependent Claim
151 words
An impregnating agent for a cellulose article comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) a chelate or alcoholate of a metal of the third man group of the periodic system of the elements, a metallic acid ester of the formula Me.sup.IV O(OR).sub.2 wherein ME IV is, titanium, zirconium or hafnium, and R is C 1-8 alkyl or an oligomer thereof with up to 10 Me--O--Me units, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-%, the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 16
Dependent Claim
151 words
An impregnating agent for a cellulose article comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) a chelate or alcoholate of a metal of the third man group of the periodic system of the elements, a metallic acid ester of the formula Me.sup.IV O(OR).sub.2 wherein ME IV is, titanium, zirconium or hafnium, and R is C 1-8 alkyl or an oligomer thereof with up to 10 Me--O--Me units, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-%, the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 17
Dependent Claim
105 words
An impregnating agent for a cellulose article comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) a chelate of tin with acetylacetonate, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-%, the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 18
Dependent Claim
105 words
An impregnating agent for a cellulose article comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms, and (b) a chelate of tin with acetylacetonate, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-%, the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 19
Dependent Claim
23 words
A method of rendering a cellulose article water repellant which comprises contacting said cellulose containing composition with the impregnating agent of claim 1.
Claim 20
Dependent Claim
23 words
A method of rendering a cellulose article water repellent which comprises contacting said cellulose containing composition with the impregnating agent of claim 2.
Claim 21
Dependent Claim
23 words
A method of rendering a cellulose article water repellant which comprises contacting said cellulose containing composition with the impregnating agent of claim 10.
Claim 22
Dependent Claim
23 words
A method of rendering a cellulose article water repellant which comprises contacting said cellulose containing composition with the impregnating agent of claim 11.
Claim 23
Dependent Claim
23 words
A method of rendering a cellulose article water repellant which comprises contacting said cellulose containing composition with the impregnating agent of claim 12.
Claim 24
Dependent Claim
23 words
A method of rendering a cellulose article water repellant which comprises contacting said cellulose containing composition with the impregnating agent of claim 13.
Claim 25
Independent Claim
136 words
A method of rendering a cellulose article water-repellent which comprises contacting said cellulose-containing composition with an impregnating agent comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms; and (b) a chelate or alcoholate of tin or metal of the third main group or fourth or fifth secondary group of the periodic system of the elements, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-% the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 26
Independent Claim
136 words
A method of rendering a cellulose article water-repellent which comprises contacting said cellulose-containing composition with an impregnating agent comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon atoms; and (b) a chelate or alcoholate of tin or metal of the third main group or fourth or fifth secondary group of the periodic system of the elements, wherein component (a) is present in the mixture in an amount between 5 and 99.5 wt.-% and component (b) is present in an amount between 0.5 and 95 wt.-% the combined amounts of components (a) and (b) being present in an amount effective to produce an impregnating agent which has a water-proofing action on cellulose.
Claim 27
Independent Claim
132 words
A method of rendering paper water repellent which comprises contacting said paper with an impregnating agent comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon items; and (b) a silicic acid ester of the formula Si(OR') 4 ' wherein R is an alkyl moiety of 1 to 8 carbon atoms or an oligomer thereof with up to 10 Si--O--Si units, said impregnating agent containing 60 to 98% by-weight of said alkyltrialkoxysilane and 2 to 40% by-weight of said silicic acid ester, said alkyltrialkoxysilane and said silicic acid ester being present in an amount effective to produce an impregnating agent which has a water proofing action on paper.
Claim 28
Independent Claim
132 words
A method of rendering paper water repellent which comprises contacting said paper with an impregnating agent comprising: (a) an alkyltrialkoxysilane of the formula R Si(OR') 3 , in which R represents an alkyl moiety of 1 to 18 carbon atoms and R' an alkyl moiety of 1 to 4 carbon items; and (b) a silicic acid ester of the formula Si(OR') 4 ' wherein R is an alkyl moiety of 1 to 8 carbon atoms or an oligomer thereof with up to 10 Si--O--Si units, said impregnating agent containing 60 to 98% by-weight of said alkyltrialkoxysilane and 2 to 40% by-weight of said silicic acid ester, said alkyltrialkoxysilane and said silicic acid ester being present in an amount effective to produce an impregnating agent which has a water proofing action on paper.
Claim 29
Dependent Claim
18 words
A water-repellant cellulose article comprising cellulose which contains within the pores thereof the impregnating agent of claim 1.
Claim 30
Dependent Claim
17 words
A water-repellant cellulose article according to claim 22, wherein said cellulose is in the form of paper.
Claim 31
Dependent Claim
18 words
A water-repellant cellulose article according to claim 22, wherein said cellulose is in the form of filter paper.
Claim 32
Dependent Claim
17 words
A water-repellant cellulose article according to claim 22, wherein said cellulose is in the form of wood.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |