US4900500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Point-of-use infectious waste disposal system
Assignee: WCM WASTE & COMPLIANCE MANAGEMENT Inc
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Filing: 1989-03-28
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Granted: 1990-02-13
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Expires: 2009-03-28
Abstract
Abstract A method for containing potentially infectious devices. The potentially infectious devices are deposited in a container to which is added an oligomer or monomer-containing composition to at least partially envelope the potentially infectious devices. The oligomer or monomer-containing composition is caused to harden through polymerization or cross-linking of the oligomer or monomer to immobilize the devices, and to act as a sterilizing or disinfectant agent due in large part to the exothermic nature of the reaction.
Inventors
- 👤 Travis W. Honeycutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:46
CPC Classifications
B; B09; B09B; B09B3/00; B09B3/20; B09B3/21; A; A61; A61B; A61B50/00; A61B50/30; A61B50/36; A61B50/362; A61L; A61L11/00; B09B3/70; B09B2101/00; B09B2101/65; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
61 words
In a method for containing potentially infectious devices comprising depositing the potentially infectious devices in a container, the improvement comprising adding to said container a sufficient quantity of a hardenable composition to at least partially envelop said potentially infectious devices, said hardenable composition comprising an acrylate monomer-containing liquid capable of polymerizing in an exothermic reaction to immobilize said potentially infectious devices.
Claim 2
Dependent Claim
61 words
In a method for containing potentially infectious devices comprising depositing the potentially infectious devices in a container, the improvement comprising adding to said container a sufficient quantity of a hardenable composition to at least partially envelop said potentially infectious devices, said hardenable composition comprising an acrylate monomer-containing liquid capable of polymerizing in an exothermic reaction to immobilize said potentially infectious devices.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein said acrylate monomer-containing composition is capable of at least partially sterilizing said potentially infectious devices upon the polymerization of said acrylate monomer.
Claim 4
Dependent Claim
29 words
The method of claim 1 wherein said acrylate monomer is a member selected from the group consisting of esters of acrylic acid, methacrylic acids and acrylamides and their derivatives.
Claim 5
Dependent Claim
113 words
The method of claim 1 wherein said acrylate monomer is of the following formula: ##STR2## wherein: R 1 is a member selected from the group consisting of --COOH and --COOR 5 ; R 2 is a member selected from the group consisting of H, CH 3 --, CH 3 CH 2 -- and CN--; R 3 and R 4 are each a member selected from the group consisting of H, CH 3 --, CH 3 CH 2 -- and a halogen; R 5 is a member selected from the group consisting of an alkyl of from 1 to 12 carbon atoms, an alkoxyalkyl, --CONH 2 , and acrylamide and its methylene bis product.
Claim 6
Dependent Claim
12 words
The method of claim 4 wherein R 5 is CH 3 --.
Claim 7
Dependent Claim
20 words
The method of claim 4 wherein R 5 is a member selected from the group consisting of ethoxyethyl and hydroxyethyl.
Claim 8
Dependent Claim
15 words
The method of claim 1 wherein said hardenable composition further comprises a free radical scavenger.
Claim 9
Dependent Claim
31 words
The method of claim 7 wherein said free radical scavenger comprises a member selected from the group consisting of hydroquinone, monoethyl ether of hydroquinone, butylated hydroxyanisole, butylated hydroxytoluene and t-butyl hydroquinone.
Claim 10
Dependent Claim
13 words
The method of claim 1 wherein said hardenable composition further comprises a promoter.
Claim 11
Dependent Claim
27 words
The method of claim 9 wherein said promoter is a member selected from the group consisting of ferrous salts, cuprous salts, sodium-meta-bisulfite, isoascorbic acid and tertiary amines.
Claim 12
Dependent Claim
13 words
The method of claim 10 wherein said tertiary amines are N,N-dimethyl-toluidine or N,N-dihydroxyethyl-para-toluidine.
Claim 13
Dependent Claim
13 words
The method of claim 1 wherein said hardenable composition further comprises a solvent.
Claim 14
Dependent Claim
10 words
The method of claim 12 wherein said solvent is water.
Claim 15
Dependent Claim
13 words
The method of claim 1 wherein said hardenable composition further comprises a plasticizer.
Claim 16
Dependent Claim
24 words
The method of claim 14 wherein said plasticizer comprises a member selected from the group consisting of monofunctional aliphatic esters and difunctional aliphatic esters.
Claim 17
Dependent Claim
15 words
The method of claim 15 wherein said monofunctional aliphatic esters comprises butylacetate or butyl cyanoacetate.
Claim 18
Dependent Claim
18 words
The method of claim 15 wherein said difunctional aliphatic esters comprises dibutyl phthalate, phosphate esters or phosphonate esters.
Claim 19
Dependent Claim
33 words
The method of claim 1 wherein said hardenable composition has a viscosity of approximately between 0 and 1000 cps when measured on a Brookfield viscometer at 20 rpms with a number 4 spindle.
Claim 20
Dependent Claim
13 words
The method of claim 1 wherein said hardenable composition further comprises a catalyst.
Claim 21
Dependent Claim
22 words
The method of claim 19 wherein said catalyst comprises a member selected from the group consisting of a persulfate, peroxide and perborate.
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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) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |