US4003866A
Expired / Lapsed
US
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Construction material and a process for producing the same
Assignee: Paturle Ets SA
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Filing: 1975-01-20
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Granted: 1977-01-18
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Expires: 1995-01-20
Abstract
Abstract A construction material and a process for the preparation thereof, which material comprises a plastic component constituted of a thermoplastic resin; and a filler component constituted of a mineral and/or organic filler at least equal in weight to the amount of the plastic component and the individual particles of which are coated or encapsulated with a polyethylene or polypropylene wax having a molecular weight of from 1,000 to 10,000, a thermofluid high molecular weight polymer, or a silicate coating. The composite material is low in cost and may be processed by conventional techniques, e.g., by molding, extrusion or machining, to produce a variety of useful products.
Inventors
- 👤 Rene Paturle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:44
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58; B29B; B29B17/00; B29B17/0026; B29B17/0042; B29B7/00; B29B7/02; B29B7/06; B29B7/10; B29B7/12; B29B7/16; B29B7/30; B29B7/58; B29B7/60; B29B7/603; B29B7/74; B29B7/7476; B29B7/748; B29B7/7485; B29B7/80; B29B7/82; B29B7/826; B29B7/86; B29B7/88; B29B7/90; C; C08; C08J; C08J11/00; C08J11/04; C08J11/06; B29K; B29K2023/00; B29K2025/00; B29K2077/00; B29K2105/00; B29K2105/26; B29K2301/00; B29K2301/12; B29K2503/00; B29K2503/04; B29K2705/00; B29K2709/00; B29K2709/12; B29K2711/00; B29K2711/14; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
82 words
A construction material which comprises a mixture of: a. a plastic component constituting at least one thermoplastic resin; and b. a filler component consitituting at least one mineral and/or organic filler in an amount at least equal in weight to the amount of said plastic component, the individual particles of the filler being coated or encapsulated with a polyethylene or polypropylene wax having a molecular weight of from 1,000 to 10,000, a thermofluid high molecular weight polymer, or a silicate coating material.
Claim 2
Dependent Claim
82 words
A construction material which comprises a mixture of: a. a plastic component constituting at least one thermoplastic resin; and b. a filler component consitituting at least one mineral and/or organic filler in an amount at least equal in weight to the amount of said plastic component, the individual particles of the filler being coated or encapsulated with a polyethylene or polypropylene wax having a molecular weight of from 1,000 to 10,000, a thermofluid high molecular weight polymer, or a silicate coating material.
Claim 3
Dependent Claim
23 words
The construction material of claim 1, wherein at least one thermoplastic resin comprising the plastic component of the mixture is low density polyethylene.
Claim 4
Dependent Claim
23 words
The construction material of claim 1, wherein the plastic component comprises as a thermoplastic resin constituent thereof a polyamide resin having good fluidity.
Claim 5
Dependent Claim
23 words
The construction material of claim 1, wherein the plastic component comprises as a thermoplastic resin constituent thereof a polystyrene resin having good fluidity.
Claim 6
Dependent Claim
35 words
The construction material of claim 1, wherein the filler is wood chips, sawdust, asbestos dust, asbestos fibers, peat, sulfur, siliceous earth, sand, graphite, metal shavings, ashes from garbage incineration plants and wastes of thermosetting plastics.
Claim 7
Dependent Claim
28 words
The construction material of claim 1, wherein the thermoplastic resin comprising the plastic component is a freshly produced resin, a recycled resin, or a comminuted plastic waste material.
Claim 8
Dependent Claim
19 words
The construction material of claim 1, containing the following substances in percent by weight: 10-60% asbestos 50-40% comminuted plastics.
Claim 9
Dependent Claim
38 words
The construction material of claim 7, wherein approximately half of the comminuted plastics in the mixture consists of plastics with an arbitrary composition and approximately one-fourth consists of polystyrenes and low density polyethylene, respectively, in percent by weight.
Claim 10
Dependent Claim
65 words
The construction material of claim 1, consisting essentially of the following substances, in percent by weight: a. as the filler component 40-60% wood wastes (chips, fibers, or sawdust), and 2-6% of a polyethylene or polypropylene wax having a molecular weight of from 1,000 to 10,000 coating or encapsulating the wood wastes; and b. 20-30% plastic of arbitrary composition, 10-15% polystyrene, and 10-15% low density polyethylene.
Claim 11
Dependent Claim
17 words
The construction material of claim 1, wherein the coating material on the filler particles is sodium silicate.
Claim 12
Dependent Claim
58 words
The construction material of claim 1, consisting essentially of the following substances, in percent by weight: a. as the filler component 40-60% wood wastes (chips, fibers, or sawdust), and 2-12% of a silicate material coating or encapsulating the wood wastes; and b. as the plastic component 20-30% plastic of arbitrary composition, 10-15% polystyrene, and 10-15% low density polyethylene.
Claim 13
Dependent Claim
41 words
The construction material of claim 1, incorporating as a heat-resistant additive hard wood chips, glass fibers, particulate elements of a heat-resistant thermoplastic resin selected from polyester, polyamide, polypropylene and polyethylene (density of at least 0.95) resins, or pieces of metallic filaments.
Claim 14
Dependent Claim
123 words
A process for the preparation of the construction material of claim 1, which comprises: a. admixing at least one thermoplastic resin with one or more additional resinous materials in comminuted form to produce said plastic component; b. pre-mixing a mineral and/or organic filler with a polyethylene or polypropylene wax having a molecular weight of from 1,000 to 10,000, a thermofluid high molecular weight polymer, or a silicate coating material therefor, and heating the mixture thereof to coat or encapsulate the individual particles of the filler with said coating material and thereby form said filler component; c. mixing the plastic and filler components at elevated temperatures to form a semi-homogeneous, pasty mass; and d. recovering the pasty mass and forming said construction material therefrom.
Claim 15
Dependent Claim
23 words
The process of claim 13, wherein the coating material applied to the filler in step (b) is a low molecular weight polyethylene wax.
Claim 16
Dependent Claim
24 words
The process of claim 13, wherein the filler is pre-mixed with the coating material therefor in step (b) at temperatures of from 110-130° C.
Claim 17
Dependent Claim
21 words
The process of claim 13, wherein the plastic and filler components are heated and mixed in step (c) in a vacuum.
Claim 18
Dependent Claim
26 words
The process of claim 13, wherein the plastic and filler components are heated and mixed in step (c) under excess pressure in an inert gas atmosphere.
Claim 19
Dependent Claim
19 words
The process of claim 13, wherein the coating material applied to the filler in step (b) is a silicate.
Claim 20
Dependent Claim
24 words
The process of claim 18, wherein the filler is pre-mixed with the coating material therefor in step (b) at temperatures of from 70°-100° C.
Claim 21
Dependent Claim
21 words
The process of claim 18, wherein the filler is pre-mixed with the coating material therefor in step (b) under a vacuum.
Claim 22
Dependent Claim
29 words
The process of claim 18, wherein the coating material applied to the filler in step (b) is a sodium silicate of 50°/60° Baume, of 30°/40° Baume, or 45° Baume.
Claim 23
Dependent Claim
55 words
The process of claim 13, wherein the thermoplastic resin incorporated in the plastic component is premixed, prior to step (c), with a polyethylene or polypropylene wax having a molecular weight of from 1,000 to 10,000, a thermofluid high molecular weight polymer, or a silicate coating material therefor and coated or encapsulated with said coating material.
Claim 24
Dependent Claim
24 words
The process of claim 13, wherein the plastic and filler components are heated and mixed in step (c) at temperatures of from 240°-400° C.
Claim 25
Dependent Claim
50 words
The process of claim 13, wherein the plastic and filler components are admixed in step (c) with hard wood chips, glass fibers, particulate elements of a heat-resistant thermoplastic resin selected from among polyester, polyamide, polypropylene and polyethylene (density of at least 0.95) resins, or metallic filaments, as heat-resistant additives therefor.
Claim 26
Dependent Claim
39 words
The process of claim 24, wherein the plastic and filler components are admixed with said additives when said components are semi-homogenized and within 30 to 60 seconds before termination of the mixing operation with the mixture in paste form.
References Cited (Backward Citations)
GB792557A
Cited
US3070557A
Cited
US3406127A
Cited
US3577369A
Cited
US3491034A
Cited
US3645961A
Cited
US3554941A
Cited
US3856724A
Cited
US3825519A
Cited
US3888810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |