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US4970273A Expired / Lapsed US ⏱️ 0.0 years remaining

Sulphuryl chloride/polyamide derivative support

Assignee: Memtec Ltd
•
Filing: 1989-01-23
•
Granted: 1990-11-13
•
Expires: 2009-01-23
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Abstract

Abstract A process for producing a support capable of reaction with antibodies or enzymes, said process comprising the steps of: (i) reacting an aliphatic polyamide with a solution consisting essentially of sulphuryl chloride and a paraffin or cycloparaffin to produce a sulphuryl chloride modified polyamide reactive intermediate product; (ii) reacting the product of step (i) with a compound that binds to said product to provide a covalent chemical link to which antibodies or enzymes may be bound.

Inventors

  • 👤 Douglas L. Ford
  • 👤 Richard Grant

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 00:25
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/30; B01J20/32; B01J20/3214; B01J20/3217; B01J20/22; B01J20/26; B01J20/262; B01J20/265; B01J20/281; B01J20/282; B01J20/285; B01J20/286; B01J20/289; B01J20/3202; B01J20/3206; B01J20/3208; B01J20/3212; B01J20/3219; B01J20/3231; B01J20/3242; B01J20/3244; B01J20/3246; B01J20/3248; B01J20/3251; C; C07; C07K; C07K17/00; C07K17/02; C07K17/08; C08; C08G; C08G69/00; C08G69/48; C12; C12N; C12N11/00; C12N11/02; C12N11/08; C12N11/089; C12N11/096; C12Q; C12Q1/00; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/543; G01N33/54353; B01D; B01D15/00; B01D15/08; B01D15/26; B01D15/38; B01D15/3804

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 76 words
A process for producing a support capable of reaction with antibodies or enzymes, said process comprising the steps of: (i) reacting an aliphatic polyamide with a solution consisting essentially of sulphuryl chloride and a paraffin or cycloparaffin to produce a sulphuryl chloride modified polyamide reactive intermediate product; (ii) reacting the product of step (i) with a compound that binds to said product to provide a covalent chemical link to which antibodies or enzymes may be bound.
Claim 2
Dependent Claim 76 words
A process for producing a support capable of reaction with antibodies or enzymes, said process comprising the steps of: (i) reacting an aliphatic polyamide with a solution consisting essentially of sulphuryl chloride and a paraffin or cycloparaffin to produce a sulphuryl chloride modified polyamide reactive intermediate product; (ii) reacting the product of step (i) with a compound that binds to said product to provide a covalent chemical link to which antibodies or enzymes may be bound.
Claim 3
Dependent Claim 25 words
A process according to claim 1 wherein the product of step (i) is reacted with 2,3-epoxy-1-chloropropane to provide epoxide groups as the covalent chemical link.
Claim 4
Dependent Claim 73 words
A support capable of reaction with antibodies or enzymes prepared by a process comprising the steps of: (i) reacting an aliphatic polyamide with a solution consisting essentially of sulphuryl chloride and a paraffin or cycloparaffin to produce a sulphuryl chloride modified polyamide reactive intermediate product; (ii) reacting the product of (i) with a compound that binds to said product to provide a covalent chemical link to which antibodies or enzymes may be bound.
Claim 5
Dependent Claim 73 words
A support capable of reaction with antibodies or enzymes prepared by a process comprising the steps of: (i) reacting an aliphatic polyamide with a solution consisting essentially of sulphuryl chloride and a paraffin or cycloparaffin to produce a sulphuryl chloride modified polyamide reactive intermediate product; (ii) reacting the product of (i) with a compound that binds to said product to provide a covalent chemical link to which antibodies or enzymes may be bound.
Claim 6
Dependent Claim 25 words
A support according to claim 3 wherein the product of step (i) is reacted with 2,3-epoxy-1-chloropropane to provide epoxide groups as the covalent chemical link.

References Cited (Backward Citations)

US4822863A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-11-12 1994-05-14 1994-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-11-12 1998-05-14 1998-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-11-12 2002-05-14 2002-11-13 $7700.00 Window Closed / Lapsed

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