US2553916A - Mixture for the production of pastes of synthetic material - Google Patents
Mixture for the production of pastes of synthetic material Download PDFInfo
- Publication number
- US2553916A US2553916A US96616A US9661649A US2553916A US 2553916 A US2553916 A US 2553916A US 96616 A US96616 A US 96616A US 9661649 A US9661649 A US 9661649A US 2553916 A US2553916 A US 2553916A
- Authority
- US
- United States
- Prior art keywords
- grains
- powder
- mixture
- diameter
- coarse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 229920002994 synthetic fiber Polymers 0.000 title description 9
- 239000000843 powder Substances 0.000 claims description 23
- 229920001169 thermoplastic Polymers 0.000 claims description 9
- 239000004416 thermosoftening plastic Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 description 16
- 239000007788 liquid Substances 0.000 description 11
- 239000004014 plasticizer Substances 0.000 description 6
- 229920000915 polyvinyl chloride Polymers 0.000 description 6
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 4
- 239000006194 liquid suspension Substances 0.000 description 4
- 239000011049 pearl Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 229960002380 dibutyl phthalate Drugs 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/18—Plasticising macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/005—Processes for mixing polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/11—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers
Definitions
- fluent pastes with as small as possible quantities of liquid as plasticisers can be obtained by using for the production of the paste synthetic material powder containing larger quantities of larger particles of synthetic material and smaller quantities f smaller particles of synthetic materiaLwhilst substantially excluding the intermediate particles of intermediate size.
- the synthetic material mixture contains a gap in the distribution of particle sizes. i. e. particles of intermediate grain size are substantially absent between the larger and the smaller particle sizes.
- This special novel particle distribution gives a fluent paste even with relatively small quantities of liquid, whereas the usual mixture of grains, containing grains of intermediate size, gives a non-fluent stiff paste with the same liquid content which cannot readily be worked up.
- the synthetic material powders according to the invention may consist of particles of sizes less than /1000 mm. up to 0.5 mm. and more. For example 1 part by weight of polymethylmethacrylate pearls with a particle size of 0.250
- a polyvinyl chloride powder with particles of 9 to 15 microns does not give a suspension with equal parts of dibutylphthalate, but only mixtures of muddyconsistency; if, however, 20 to of the polyvinyl chloride particles of 9 to 15 microns are replaced by particles of 0.4 to 1.5 microns, then a liquid suspension is obtained similar to a painting lacquer. It had hitherto been assumed that good paste-forming powers depended more or less on the degree of polymerisation and on the manner in which the polymer was isolated. This is not, however, of primary importance; according to the present invention pasteforming power is primarily a function of the fineness of the grain composition of the synthetic material powder.
- the paste is produced by mixing or triturating the powder with the liquid plasticiser at low temperatures for example at room temperature, until a uniform suspension is produced, and the fractions of the powder of different granular sizes can be added to the liquid one after the other or as a mixture.
- the granular distribution follows the following rules:
- the powder is produced from two granular sizes, the ratio of the mean particle size of which is 1:6 or more.
- Granular sizes between these proportions should be kept as small as possible, i. e. there should be as few particles as possible having a granular size of between 1.1 times and 5.9 times the size of the smaller grains.
- the proportion by weight of larger grains should amount to 0.8 times to 5 times the weight of the smaller grains.
- each one of the above-mentioned granular sizes requires at least 1.2 parts of liquid for 1.0 part of powder to produce a liquid suspension as do mixtures of (a) with (b) or (c) with (d).
- a powder for the production of pastes of thermoplastic polymeric material for thermoplastic working up consisting essentially of a mixture of coarse grained and fine grained powder of the polymeric material the coarse grains having a diameter at least six times the diameter of the fine grains, and the ratio of the weight of the coarse grains to the weight of the fine grains being between 8:10 and :15, said powder mixture being substantially devoid of grains sized between the coarse and fine grain sizes.
- thermoplastic working up consisting of a powdery mixture of coarse and fine grained thermoplastic polymeric material
- the coarse grains having a diameter at least six times the diameter of the fine grains, and the ratio of the weight of the coarse grains to the weight of the fine grains being between 8:10 and 85:15, said powder mixture being substantially devoid of grains sized between the coarse and fine grain sizes, and a sufiicient quantity of liquid plasticiZer to convert said powder mixture into a fluent paste.
- thermoplastic polymeric material is a polyvinyl resin.
- thermoplastic polymeric material is polyvinyl chloride.
- thermoplastic material is an acrylic resin
- thermoplastic material is a polym-ethacrylate and said plasticizer is a monomeric methacrylate.
- a paste according to claim '2 in which the diameter of the coarse grains is less than 0.1 mm.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH671045X | 1948-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2553916A true US2553916A (en) | 1951-05-22 |
Family
ID=4527662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US96616A Expired - Lifetime US2553916A (en) | 1948-06-14 | 1949-06-01 | Mixture for the production of pastes of synthetic material |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2553916A (en)) |
| BE (1) | BE489599A (en)) |
| CH (1) | CH272263A (en)) |
| DE (1) | DE934498C (en)) |
| FR (1) | FR987880A (en)) |
| GB (1) | GB671045A (en)) |
| NL (2) | NL72985C (en)) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2674585A (en) * | 1951-07-24 | 1954-04-06 | Shell Dev | Plastisols of vinyl chloride polymer |
| US2721859A (en) * | 1954-08-16 | 1955-10-25 | Us Rubber Co | Spray-drying process for making plastisol grade vinyl chloride polymers |
| US2729627A (en) * | 1952-11-26 | 1956-01-03 | Us Rubber Co | Polyvinyl chloride for use in plastisols |
| US2753287A (en) * | 1953-09-18 | 1956-07-03 | Millville Mfg Company | Organic dispersion type adhesives, their preparation and application |
| US2784177A (en) * | 1949-07-22 | 1957-03-05 | Distillers Co Yeast Ltd | Production of paste-forming polyvinyl chloride |
| US2843576A (en) * | 1953-12-03 | 1958-07-15 | Ethyl Corp | Production of vinyl compounds |
| US3179646A (en) * | 1959-09-28 | 1965-04-20 | Dow Chemical Co | Polymerization to produce friable aggregates of individual spheres of polyvinyl chloride |
| JPS4860747A (en)) * | 1971-11-26 | 1973-08-25 | ||
| US4657966A (en) * | 1983-04-25 | 1987-04-14 | Polysar Limited | Carboxylated latex |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210567A (en) | 1974-11-15 | 1980-07-01 | Teroson G.M.B.H. | Plastisol of an acrylate polymer and a plasticizer |
| US4595590A (en) * | 1984-01-17 | 1986-06-17 | Laboratoires Biocodex | Method for preventing or treating pseudo-membranous colitis |
| DE19542746A1 (de) | 1995-11-16 | 1997-05-22 | Roehm Gmbh | Plastisole auf der Grundlage von durch Weichmacherzusatz weichgemachte Polymermassen |
| DE19928352A1 (de) | 1999-06-21 | 2000-12-28 | Roehm Gmbh | Verbesserte Poly(meth)acrylatptastisole und Verfahren zu ihrer Herstellung |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE737058C (de) * | 1936-09-07 | 1943-07-06 | Kulzer & Co Gmbh | Verfahren zur Herstellung von Prothesen fuer zahnaerztliche oder andere Zwecke aus polymerisierten organischen Verbindungen |
| GB535612A (en) * | 1939-09-07 | 1941-04-16 | Archibald Renfrew | Improvements in and relating to the production of pastes from polymerised vinyl chloride |
-
0
- NL NL686811781A patent/NL146908B/xx unknown
- NL NL72985D patent/NL72985C/xx active
- BE BE489599D patent/BE489599A/xx unknown
-
1948
- 1948-06-14 CH CH272263D patent/CH272263A/de unknown
-
1949
- 1949-05-19 GB GB13440/49A patent/GB671045A/en not_active Expired
- 1949-05-21 DE DEP43422A patent/DE934498C/de not_active Expired
- 1949-06-01 US US96616A patent/US2553916A/en not_active Expired - Lifetime
- 1949-06-08 FR FR987880D patent/FR987880A/fr not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2784177A (en) * | 1949-07-22 | 1957-03-05 | Distillers Co Yeast Ltd | Production of paste-forming polyvinyl chloride |
| US2674585A (en) * | 1951-07-24 | 1954-04-06 | Shell Dev | Plastisols of vinyl chloride polymer |
| US2729627A (en) * | 1952-11-26 | 1956-01-03 | Us Rubber Co | Polyvinyl chloride for use in plastisols |
| US2753287A (en) * | 1953-09-18 | 1956-07-03 | Millville Mfg Company | Organic dispersion type adhesives, their preparation and application |
| US2843576A (en) * | 1953-12-03 | 1958-07-15 | Ethyl Corp | Production of vinyl compounds |
| US2721859A (en) * | 1954-08-16 | 1955-10-25 | Us Rubber Co | Spray-drying process for making plastisol grade vinyl chloride polymers |
| US3179646A (en) * | 1959-09-28 | 1965-04-20 | Dow Chemical Co | Polymerization to produce friable aggregates of individual spheres of polyvinyl chloride |
| JPS4860747A (en)) * | 1971-11-26 | 1973-08-25 | ||
| US4657966A (en) * | 1983-04-25 | 1987-04-14 | Polysar Limited | Carboxylated latex |
Also Published As
| Publication number | Publication date |
|---|---|
| BE489599A (en)) | |
| NL146908B (nl) | |
| GB671045A (en) | 1952-04-30 |
| CH272263A (de) | 1950-12-15 |
| FR987880A (fr) | 1951-08-20 |
| NL72985C (en)) | |
| DE934498C (de) | 1955-10-27 |
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