Patent US4721738A successfully refreshed from Google Patents.
US4721738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric compositions including microwave energy sensitizing additives
Assignee: Occidental Research Corp
•
Filing: 1985-10-07
•
Granted: 1988-01-26
•
Expires: 2005-10-07
Abstract
Abstract A composition of matter including a polymer sensitized to the heating effects of microwave energy which comprises said polymer and a microwave sensitizing amount of a particulate, layered compound comprising a tetravalent atom and a pentavalent atom, selected from the group consisting of elements of Group V of the Periodic Table of the Elements, and having an atomic weight of greater than 30, dispersed throughout said polymer.
Inventors
- 👤 Jeffrey R. Ellis
- 👤 Martin B. Dines, deceased
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:02
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C65/14; B29C65/1403; B29C65/1425; B29C65/1477; B29C65/34; B29C65/36; B29C65/3604; B29C65/3608; B29C65/3612; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/4855; B29C65/4865; C; C08; C08K; C08K5/00; C08K5/0091; C08K5/49; C08K5/51; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0855; B29C66/00; B29C66/70; B29C66/71
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
143 words
A composition of matter including a polymer sensitized to the heating effects of microwave energy which comprises said polymer and microwave sensitizing amount of a particulate, layered compound represented by the general formula: M(O 3 ZO x R) n wherein M is, selected from the group consisting of Zr, W, U, Ti, Th, Te, Sn, Si, Ru, Pu, V, Pr, Pb, Os, Nb, Mo, Mn, Ir, Hf, Ge, Ce and mixtures thereof; Z is selected from the group consisting of elements of Group V of the Periodic Table of the Elements, and having an atomic weight of greater than 30; x varies from 0 to 1; R is selected from the group consisting of hydrogen and organo radicals and n is 1 or 2, provided that n is 1 when R is terminated with a tri-or tetraoxy pentavalent atom, dispersed throughout said polymer.
Claim 2
Dependent Claim
143 words
A composition of matter including a polymer sensitized to the heating effects of microwave energy which comprises said polymer and microwave sensitizing amount of a particulate, layered compound represented by the general formula: M(O 3 ZO x R) n wherein M is, selected from the group consisting of Zr, W, U, Ti, Th, Te, Sn, Si, Ru, Pu, V, Pr, Pb, Os, Nb, Mo, Mn, Ir, Hf, Ge, Ce and mixtures thereof; Z is selected from the group consisting of elements of Group V of the Periodic Table of the Elements, and having an atomic weight of greater than 30; x varies from 0 to 1; R is selected from the group consisting of hydrogen and organo radicals and n is 1 or 2, provided that n is 1 when R is terminated with a tri-or tetraoxy pentavalent atom, dispersed throughout said polymer.
Claim 3
Dependent Claim
9 words
The composition of claim 1 wherein Z is P.
Claim 4
Dependent Claim
18 words
The composition of claim 2 wherein at least a portion of said R groups have a polar bond.
Claim 5
Dependent Claim
20 words
The composition of claim 3 wherein said polar bond is selected from the group consisting of hydroxyl and sulfhydryl bonds.
Claim 6
Dependent Claim
17 words
The composition of claim 3 wherein M is selected from the group consisting of Zr and Ti.
Claim 7
Dependent Claim
13 words
The composition of claim 1 wherein said polymer is a nonpolar thermoplastic polymer.
Claim 8
Dependent Claim
31 words
The composition of claim 6 wherein said nonpolar thermoplastic polymer is selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymers, terpolymers of ethylene, propylene and a polyene, and styrene-butadiene copolymers.
Claim 9
Dependent Claim
57 words
The composition of claim 1 wherein said particulate layered compound is selected from the group consisting of Zr(O 3 PCH 2 CH 2 SH) 2 , Zr(O 3 PCH 2 CH 2 OH) 2 , Zr(O 3 POCH 2 CH 2 OH) 2 , Zr(O 3 POH) 2 , and Zr(O 3 PCH 2 OH) 2 .
Claim 10
Independent Claim
196 words
A method for molding polymer compositions by use of microwave energy which comprises: (a) incorporating a microwave sensitivity-increasing amount of a particulate, layered represented by the general formula: M(O 3 ZO x R) n wherein M is selected from the group consisting of Zr, W, U, Ti, Th, Te, Sn, Si, Ru, Pu, V, Pr, Pb, Os, Nb, Mo, Mn, Ir, Hf, Ge, Ce and mixtures thereof; Z is selected from the group consisting of elements of Group V of the Periodic Table of the Elements, and having an atomic weight of greater than 30; x varies from 0 to 1, R is selected from the group consisting of hydrogen and organo radicals, and n is 1 or 2; provided that n is 1 when R is terminated with a tri-or tetraoxy pentavalent atom into a polymer to provide a polymer composition. (b) subjecting said polymer composition to microwave energy for a time and at an intensity sufficient to raise the temperature of said polymer composition and thereby soften said polymer composition; (c) molding said softened polymer composition into a desired shape; and (d) allowing said molded polymer composition to cool while maintaining said desired shape.
Claim 11
Independent Claim
196 words
A method for molding polymer compositions by use of microwave energy which comprises: (a) incorporating a microwave sensitivity-increasing amount of a particulate, layered represented by the general formula: M(O 3 ZO x R) n wherein M is selected from the group consisting of Zr, W, U, Ti, Th, Te, Sn, Si, Ru, Pu, V, Pr, Pb, Os, Nb, Mo, Mn, Ir, Hf, Ge, Ce and mixtures thereof; Z is selected from the group consisting of elements of Group V of the Periodic Table of the Elements, and having an atomic weight of greater than 30; x varies from 0 to 1, R is selected from the group consisting of hydrogen and organo radicals, and n is 1 or 2; provided that n is 1 when R is terminated with a tri-or tetraoxy pentavalent atom into a polymer to provide a polymer composition. (b) subjecting said polymer composition to microwave energy for a time and at an intensity sufficient to raise the temperature of said polymer composition and thereby soften said polymer composition; (c) molding said softened polymer composition into a desired shape; and (d) allowing said molded polymer composition to cool while maintaining said desired shape.
Claim 12
Dependent Claim
9 words
The method of claim 9 wherein Z is P.
Claim 13
Dependent Claim
18 words
The method of claim 10 wherein at least a portion of said R groups have a polar bond.
Claim 14
Dependent Claim
20 words
The method of claim 11 wherein said polar bond is selected from the group consisting of hydroxyl and sulfhydryl bonds.
Claim 15
Dependent Claim
17 words
The method of claim 11 wherein M is selected from the group consisting of Zr and Ti.
Claim 16
Dependent Claim
13 words
The method of claim 9 wherein said polymer is a nonpolar thermoplastic polymer.
Claim 17
Dependent Claim
31 words
The method of claim 14 wherein said nonpolar thermoplastic polymer is selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymers, terpolymers of ethylene, propylene and a polyene, and styrene-butadiene copolymers.
Claim 18
Dependent Claim
57 words
The method of claim 9 wherein said particulate layered compound is selected from the group consisting of Zr(O 3 PCH 2 CH 2 SH) 2 , Zr(O 3 PCH 2 CH 2 OH) 2 , Zr(O 3 POCH 2 CH 2 OH) 2 , Zr(O 3 POH) 2 , and Zr(O 3 PCH 2 OH) 2 .
Claim 19
Dependent Claim
33 words
The method of claim 9 wherein said polymer composition is subjected to microwave energy within the range of 20 to 110 Mc/sec. for a time of from about 4 to about 55 seconds.
Claim 20
Dependent Claim
17 words
A container for the microwave heating of food which comprises the composition of matter of claim 1.
References Cited (Backward Citations)
US2630442A
Cited
US2743257A
Cited
US3030334A
Cited
US3647745A
Cited
US4011197A
Cited
US4100077A
Cited
US4100076A
Cited
US4360607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-25 | 1991-07-27 | 1992-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-25 | 1995-07-27 | 1996-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-25 | 1999-07-27 | 2000-01-26 | $7700.00 | Window Closed / Lapsed |