US4305855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow-modifying agents for plastic materials
Assignee: Lubrizol Corp
•
Filing: 1980-10-07
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Granted: 1981-12-15
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Expires: 2000-10-07
Abstract
Abstract Metal-containing organic flow-modifying agents comprising a major proportion of a non-Newtonian colloidal disperse system containing metal-containing particles, dispersing medium and an organic compound having both a hydrophobic and a polar substituent and a minor proportion of polymeric resin which is present as a random dispersion of particles in a non-solvated form are useful in modifying the flow properties of plastic materials. Specific examples of the disperse system are those comprising calcium carbonate particles dispersed in a mineral oil dispersing medium in the presence of a calcium petrosulfonate; an example of the resin is finely divided polyethylene. These agents are useful for modifying the flow properties of plastic materials such as filled asphalt systems.
Inventors
- 👤 John Bretz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:51
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
110 words
A solid filled material comprising (I) a minor proportion of an asphalt, (II) a major proportion of a filler and (III) (A) a minor proportion of at least one non-Newtonian colloidal disperse system comprising: (1) Solid, metal-containing colloidal particles predispersed in (2) At least one liquid dispersing medium and (3) As an essential component, at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent. and (III) (B) a minor portion of at least one polymeric resin present in said non-Newtonian system as a dispersion of discrete particles in non-solvated form.
Claim 2
Dependent Claim
110 words
A solid filled material comprising (I) a minor proportion of an asphalt, (II) a major proportion of a filler and (III) (A) a minor proportion of at least one non-Newtonian colloidal disperse system comprising: (1) Solid, metal-containing colloidal particles predispersed in (2) At least one liquid dispersing medium and (3) As an essential component, at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent. and (III) (B) a minor portion of at least one polymeric resin present in said non-Newtonian system as a dispersion of discrete particles in non-solvated form.
Claim 3
Dependent Claim
15 words
A material as claimed in claim 1 containing a (III) (C) fluidizer for said asphalt.
Claim 4
Dependent Claim
23 words
A material as claimed in claim 2 wherein components (I), (II), (III)(A), (III)(B) and (III)(C) are combined simultaneously or sequentially in any squence.
Claim 5
Dependent Claim
32 words
A material as claimed in claim 3 wherein components (III)(A), (III)(B) and (III)(C) are first combined in any sequence and then combined with components (I) and (II) in any sequence or simultaneously.
Claim 6
Dependent Claim
34 words
A material as claimed in claim 4 wherein (II) is at least one inorganic filler, (III) (B) is a hydrocarbon polymer of ethylene, propylene or ethylene/propylene and (III) (C) is a plasticizer for (I).
Claim 7
Dependent Claim
65 words
A material as claimed in claim 5 wherein the asphalt (I) is an air blown asphalt having a softening point of at least about 80° C. as measured by the ring and ball method, (II) is selected from the group consisting of alkaline earth metal carbonates and sulfates, talc, clay, ground glass, silica, carbon black, in their hydrated or non-hydrated forms and mixtures of same.
Claim 8
Dependent Claim
28 words
A material as claimed in claim 6 comprised of about 10-40 parts by weight (I), about 85-60 parts by weight (II) and about 1-20 parts by weight (III).
Claim 9
Dependent Claim
16 words
A composition made by heating the material of claim 1 to at least about 70° C.
Claim 10
Dependent Claim
16 words
A composition made by heating the material of claim 5 to at least about 70° C.
Claim 11
Dependent Claim
16 words
A composition made by heating the material of claim 7 to at least about 70° C.
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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) | 1984-12-14 | 1985-06-15 | 1985-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-14 | 1989-06-15 | 1989-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-14 | 1993-06-15 | 1993-12-15 | $7700.00 | Window Closed / Lapsed |