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US4264486A Expired / Lapsed US ⏱️ 0.0 years remaining

Methods of forming isocyanate polymers

Assignee: Halliburton Co
•
Filing: 1979-03-05
•
Granted: 1981-04-28
•
Expires: 1999-03-05
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Abstract

Abstract Particular methods and compositions are provided for producing an isocyanate polymer suitable as a sealing agent by using one or more typical di- or polyisocyanates with one or more alcoholic or acidic compounds and a particular catalyst namely, triethylenediamine, Groups 3 and 4 metal-organic compounds or mixtures thereof.

Inventors

  • 👤 Homer C. McLaughlin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 09:32
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/20; C08G18/2045; C08G18/2063; C08G18/22; C09; C09K; C09K8/00; C09K8/50; C09K8/502; C08G2190/00

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 147 words
A method of forming an isocyanate polymer using a mixture having a long gelation time greater than at least 9 minutes in the presence of at least 0.2 parts free water per 100 parts by weight of mixture comprising combining a hydroxylated organic polymer and an organic di- or polyisocyanate compound with a catalyst selected from the group consisting of triethylenediamine and Groups 3 and 4 metal-organic compounds, said hydroxylated organic polymer being present in said mixture in an amount of about 82 parts per 100 parts by weight of said mixture, said di- or polyisocyanate compound being present in said mixture in an amount in the range of from about 1 to about 16 parts per 100 parts by weight of said mixture and said catalyst being present in said mixture in an amount of about 1 part per 100 parts by weight of said mixture.
Claim 2
Independent Claim 147 words
A method of forming an isocyanate polymer using a mixture having a long gelation time greater than at least 9 minutes in the presence of at least 0.2 parts free water per 100 parts by weight of mixture comprising combining a hydroxylated organic polymer and an organic di- or polyisocyanate compound with a catalyst selected from the group consisting of triethylenediamine and Groups 3 and 4 metal-organic compounds, said hydroxylated organic polymer being present in said mixture in an amount of about 82 parts per 100 parts by weight of said mixture, said di- or polyisocyanate compound being present in said mixture in an amount in the range of from about 1 to about 16 parts per 100 parts by weight of said mixture and said catalyst being present in said mixture in an amount of about 1 part per 100 parts by weight of said mixture.
Claim 3
Dependent Claim 15 words
The method of claim 1 wherein said hydroxylated organic polymer is hydroxyl terminated (allylic) polybutadiene.
Claim 4
Dependent Claim 30 words
The method of claim 2 wherein said di- or polyisocyanate compound is selected from the group consisting of aromatic aliphatic and cycloaliphatic diisocyanates, polymers of such compounds and mixtures thereof.
Claim 5
Dependent Claim 23 words
The method of claim 3 wherein said di- or polyisocyanate compound is selected from the group consisting of tolylene diisocyanate and polymethylene polyphenylisocyanate.
Claim 6
Dependent Claim 10 words
The method of claim 4 wherein said catalyst is triethylenediamine.
Claim 7
Dependent Claim 11 words
The method of claim 1 wherein said catalyst is dibutyltin diacetate.
Claim 8
Dependent Claim 11 words
The method of claim 4 wherein said catalyst is tributyl titanate.
Claim 9
Independent Claim 177 words
A method of forming an isocyanate polymer using a mixture having a long gelation time greater than at least 9 minutes in the presence of at least 0.2 parts free water per 100 parts by weight mixture comprising: combining a hydroxylated organic polymer and an organic di- or polyisocyanate compound with a liquid solvent; and combining a catalyst selected from the group consisting of triethyleneamine and Groups 3 and 4 metal-organic compounds with said solution wherein said hydroxylated organic polymer is present in said mixture in an amount of about 45 parts per 100 parts by weight of said mixture, said di- or polyisocyanate compound is present in said mixture in an amount in the range of from about 1 to about 10 parts by 100 parts by weight of said mixture, said solvent is present in said mixture in an amount of about 45 parts per 100 parts by weight of said mixture and said catalyst is present in said mixture in an amount of about 1 part per 100 parts by weight of said mixture.
Claim 10
Independent Claim 177 words
A method of forming an isocyanate polymer using a mixture having a long gelation time greater than at least 9 minutes in the presence of at least 0.2 parts free water per 100 parts by weight mixture comprising: combining a hydroxylated organic polymer and an organic di- or polyisocyanate compound with a liquid solvent; and combining a catalyst selected from the group consisting of triethyleneamine and Groups 3 and 4 metal-organic compounds with said solution wherein said hydroxylated organic polymer is present in said mixture in an amount of about 45 parts per 100 parts by weight of said mixture, said di- or polyisocyanate compound is present in said mixture in an amount in the range of from about 1 to about 10 parts by 100 parts by weight of said mixture, said solvent is present in said mixture in an amount of about 45 parts per 100 parts by weight of said mixture and said catalyst is present in said mixture in an amount of about 1 part per 100 parts by weight of said mixture.
Claim 11
Dependent Claim 15 words
The method of claim 8 wherein said hydroxylated organic polymer is hydroxyl terminated (allylic) polybutadiene.
Claim 12
Dependent Claim 23 words
The method of claim 9 wherein said di- or polyisocyanate compound is selected from the group consisting of tolylene diisocyanate and polymethylene polyphenylisocyanate.
Claim 13
Dependent Claim 10 words
The method of claim 10 wherein said catalyst is triethylenediamine.
Claim 14
Dependent Claim 11 words
The method of claim 8 wherein said catalyst is dibutyltin diacetate.
Claim 15
Dependent Claim 11 words
The method of claim 8 wherein said catalyst is tributyl titanate.
Claim 16
Dependent Claim 23 words
The method of claim 11 wherein said solvent is selected from the group consisting of liquid aliphatic hydrocarbons, aromatic hydrocarbons and mixtures thereof.

References Cited (Backward Citations)

US2929800A Cited
US3192185A Cited
US3136731A Cited
US3338861A Cited
US3523103A Cited
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US3652508A Cited
US3814736A Cited
US3799898A Cited
US4020125A Cited
US4145515A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-04-27 1984-10-27 1985-04-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-04-27 1988-10-27 1989-04-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-04-27 1992-10-27 1993-04-28 $7700.00 Window Closed / Lapsed

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