US3879339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of solid or hollow bodies from a composition containing a granular filler
Assignee: APPLIC PROD IND
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Filing: 1972-08-10
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Granted: 1975-04-22
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Expires: 1992-08-10
Abstract
Abstract A molding composition containing at least one granular filler which is intimately mixed with at least one organic resin containing an acid curing agent, after shaping and clamping the composition, is cured at the ambient temperature and over a period of between a few seconds and a few minutes by means of an aerosol or a gas obtained by combining sulphur dioxide and an oxidising agent, the said oxidising agent, in the particular case of oxygen, being introduced in the form of a gas separately or conjointly into the said composition, and in all other cases, either having been introduced first into the composition, or being initially combined with the sulphur dioxide to form a chemical compound which can be dissociated easily.
Inventors
- 👤 Gerard Yves Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:56
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; B; B22; B22C; B22C1/00; B22C1/16; B22C1/162; B22C9/00; B22C9/12; B22C9/123; C08; C08J; C08J3/00; C08J3/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
PROCESS FOR THE MANUFACTURE OF SOLID OR HOLLOW BODIES USED ESPECIALLY FOR CORING AND MOULDING IN FOUNDING, AS WELL AS FOR THE MANUFACTURE OF REFRACTORY PRODUCTS, ABRASIVE PRODUCTS SUCH AS GRINDING WHEELS MOULDED OR CAST CONSTRUCTION MATERIALS FOR BUILDING AND CIVIL ENGINEERING, FROM A COMPOSITION COMPRISING AT LEAST ONE GRANULAR FILLER WHICH IS INTIMATELY MIXED WITH AT LEAST ONE ACID CURING ORGANIC RESIN WHICH COMPRISES, AFTER SHAPING AND CLAMPING THE SAID COMPOSITION,CURING OF THE SAID RESIN AT AMBIENT TEMPERATURE AND OVER A PERIOD OF BETWEEN A FEW SECONDS AND A FEW MINUTES, BY ADDING GASEOUS OR AEROSOL SULFUR DIOXIDE AFTER FIRST INCORPORATING IN SAID COMPOSITION BEFORE SHAPING AN OXIDIZING AGENT IN A LIQUID OR SOLID FORM WHICH REACTS WITH SULFUR DIOXIDE TO FORM SULFURIC ACID WITHOUT FORMING SULFUR TRIOXIDE.
Claim 2
Dependent Claim
129 words
PROCESS FOR THE MANUFACTURE OF SOLID OR HOLLOW BODIES USED ESPECIALLY FOR CORING AND MOULDING IN FOUNDING, AS WELL AS FOR THE MANUFACTURE OF REFRACTORY PRODUCTS, ABRASIVE PRODUCTS SUCH AS GRINDING WHEELS MOULDED OR CAST CONSTRUCTION MATERIALS FOR BUILDING AND CIVIL ENGINEERING, FROM A COMPOSITION COMPRISING AT LEAST ONE GRANULAR FILLER WHICH IS INTIMATELY MIXED WITH AT LEAST ONE ACID CURING ORGANIC RESIN WHICH COMPRISES, AFTER SHAPING AND CLAMPING THE SAID COMPOSITION,CURING OF THE SAID RESIN AT AMBIENT TEMPERATURE AND OVER A PERIOD OF BETWEEN A FEW SECONDS AND A FEW MINUTES, BY ADDING GASEOUS OR AEROSOL SULFUR DIOXIDE AFTER FIRST INCORPORATING IN SAID COMPOSITION BEFORE SHAPING AN OXIDIZING AGENT IN A LIQUID OR SOLID FORM WHICH REACTS WITH SULFUR DIOXIDE TO FORM SULFURIC ACID WITHOUT FORMING SULFUR TRIOXIDE.
Claim 3
Dependent Claim
130 words
Process for the manufacture of solid or hollow bodies, used especially for coring and moulding in founding, as well as for the manufacture of refrActory products, abrasive products such as grinding wheels moulded or cast construction materials for building and civil engineering, from a composition comprising at least one granular filler which is intimately mixed with at least one acid curing organic resin which comprise, after shaping and clamping the said composition, curing of the said resin at ambient temperature and over a period of between a few seconds and a few minutes, by adding gaseous or aerosol sulfur dioxide after first incorporating in said composition before shaping an oxidizing agent in a liquid or solid form which reacts with sulfur dioxide to form sulfuric acid without forming sulfur trioxide.
Claim 4
Dependent Claim
130 words
Process for the manufacture of solid or hollow bodies, used especially for coring and moulding in founding, as well as for the manufacture of refrActory products, abrasive products such as grinding wheels moulded or cast construction materials for building and civil engineering, from a composition comprising at least one granular filler which is intimately mixed with at least one acid curing organic resin which comprise, after shaping and clamping the said composition, curing of the said resin at ambient temperature and over a period of between a few seconds and a few minutes, by adding gaseous or aerosol sulfur dioxide after first incorporating in said composition before shaping an oxidizing agent in a liquid or solid form which reacts with sulfur dioxide to form sulfuric acid without forming sulfur trioxide.
Claim 5
Dependent Claim
55 words
Process according to claim 1 wherein the oxidising agent is from the group consisting of peroxide, hydroperoxide, hydroxy-hydroperoxide, chlorate, perchlorate, chlorite, hydrochloride, perbenzoate, metal oxide, permanganate and monoperiphthalic acid, the said oxidising agent being mixed, in the liquid or solid form, with the composition comprising the granular filler and the synthetic resin, before its shaping.
Claim 6
Dependent Claim
21 words
Process according to claim 1 wherein the oxidising agent which is introduced first into the composition is methyl ethyl ketone peroxide.
Claim 7
Dependent Claim
19 words
Process according to claim 1, wherein the oxidising agent is a product of oxidation, autooxidation or photo-oxidation of furanes.
Claim 8
Dependent Claim
15 words
Process according to claim 1 wherein the oxidising agent is an autoxidation product of cumene.
Claim 9
Dependent Claim
26 words
Process according to claim 1 wherein the oxidising agent is an autoxidation product of cumene sensitized by the addtion of quinoid, ketone, eosin or proflavin compounds.
Claim 10
Dependent Claim
19 words
Process according to claim 1 wherein the oxidising agent which is introduced first into the composition is hydrogen peroxide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |