JPS55154139A - Improved method for injection molding - Google Patents
Improved method for injection moldingInfo
- Publication number
- JPS55154139A JPS55154139A JP6235979A JP6235979A JPS55154139A JP S55154139 A JPS55154139 A JP S55154139A JP 6235979 A JP6235979 A JP 6235979A JP 6235979 A JP6235979 A JP 6235979A JP S55154139 A JPS55154139 A JP S55154139A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- gate
- injection molding
- average molecular
- molecular weight
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To prevent drooping of materials from a gate by forming the thermoplastic resin containing an inorganic powdered filler by using a forming metal die with the gate of specific structure. CONSTITUTION:A material prepared by mixing 100pts.wt. of thermoplastic resin (A) composed of 50-100wt% of thermoplastic resin of micromolecular weight whose average molecular weight and softening point on circular-spherical method are 300-5,000 and 60-200 deg.C, respectively (ex. polyethylene wax) (a) and 0- 50wt% of thermoplastic resin of macromolecular weight whose average molecular weight is 5,000 or more (ex. polystyrene) (b) with 10-900pts.wt. of an inorganic powdered collecting and filling agent (B) in the state of solid powder is formed by using an injection molding device wherein a groove 2 is provided in the direction crossing that of material injection in the inside surface of the gate 1 of a forming metal die. USE:A target for clay pigeon shooting and others.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6235979A JPS55154139A (en) | 1979-05-21 | 1979-05-21 | Improved method for injection molding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6235979A JPS55154139A (en) | 1979-05-21 | 1979-05-21 | Improved method for injection molding |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55154139A true JPS55154139A (en) | 1980-12-01 |
Family
ID=13197835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6235979A Pending JPS55154139A (en) | 1979-05-21 | 1979-05-21 | Improved method for injection molding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55154139A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4402902A (en) * | 1981-12-07 | 1983-09-06 | Borg-Warner Corporation | Method for molding glass-filled thermoplastic resins |
JPS5956457A (en) * | 1982-06-16 | 1984-03-31 | ザ ユニバ−シテイ− オブ トロント イノベ−シヨンズ フアンデ−シヨン | Reinforced resin composite body and manufacture |
US4978558A (en) * | 1988-06-10 | 1990-12-18 | United Technologies Corporation | Method for applying diffusion coating masks |
US5908890A (en) * | 1997-08-08 | 1999-06-01 | Cr Minerals Corporation | Antiblock agent for polyolefin films |
US6458880B1 (en) | 1999-10-18 | 2002-10-01 | Noveon Ip Holdings Corp. | Polyurethanes with talc crystallization promoter |
CN1325566C (en) * | 2004-10-29 | 2007-07-11 | 中国石油化工股份有限公司 | Grinding material for precision casting |
-
1979
- 1979-05-21 JP JP6235979A patent/JPS55154139A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4402902A (en) * | 1981-12-07 | 1983-09-06 | Borg-Warner Corporation | Method for molding glass-filled thermoplastic resins |
JPS5956457A (en) * | 1982-06-16 | 1984-03-31 | ザ ユニバ−シテイ− オブ トロント イノベ−シヨンズ フアンデ−シヨン | Reinforced resin composite body and manufacture |
US4978558A (en) * | 1988-06-10 | 1990-12-18 | United Technologies Corporation | Method for applying diffusion coating masks |
US5908890A (en) * | 1997-08-08 | 1999-06-01 | Cr Minerals Corporation | Antiblock agent for polyolefin films |
US6458880B1 (en) | 1999-10-18 | 2002-10-01 | Noveon Ip Holdings Corp. | Polyurethanes with talc crystallization promoter |
CN1325566C (en) * | 2004-10-29 | 2007-07-11 | 中国石油化工股份有限公司 | Grinding material for precision casting |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NL174473B (en) | Molding compositions containing polyethylene terephthalate, reinforcing or filling material and crystallization-promoting agents, and shaped articles therefrom. | |
JPS5373239A (en) | Manufacture of paper container and equipment for it | |
ZA797053B (en) | Improved inorganic filler material and polymer composition containing the same | |
JPS55154139A (en) | Improved method for injection molding | |
IT8121589A0 (en) | PROCEDURE FOR PRODUCING MIXTURES OF ARTIFICIAL THERMOPLASTIC MATERIALS AND FILLING OR ORGANIC MATERIALS, AND NOT A DEVICE FOR IMPLEMENTING THE PROCEDURE. | |
JPS51136735A (en) | Thermoplastic resin com position | |
NL189283C (en) | PASSAGE EXTRUSION COMPOSITION FOR THERMOPLASTIC PLASTICS. | |
JPS5272744A (en) | Polyprooylene composition wityh good transparency and impact resistanc e | |
IT7926660A0 (en) | MOLDING PROCEDURE BY INJECTION USING MIXTURES OF POLYMERS THAT CONTAIN POLYETHYLENE OF HIGH MOLECULAR WEIGHT, HIGH DENSITY. | |
GB884050A (en) | Improved polymeric composition and containers formed therefrom | |
MA19146A1 (en) | PACKAGING UNIT IN THE FORM OF CONTAINERS OR STRAP OF CONTAINERS OF SYNTHETIC MATERIAL. | |
JPS5225845A (en) | Polyolefin composition having improved adhesivity with nylon resin | |
JPS51145553A (en) | Thermoplastic resin compositions | |
JPS52112316A (en) | Camera body of reinforced plastics | |
NL7506195A (en) | PROCESS FOR PREPARING A RESIN COMPOSITION, PROCESS FOR PREPARING A COPOLYMER AND MATERIAL PRODUCED ON THE BASIS OF THIS COMPOSITION. | |
CA1035067A (en) | Thermoplastic moulding materials based on polyethylene with molecular weights above 1,000,000 | |
JPS51122161A (en) | Resinous composition | |
JPS5214643A (en) | Fillers for use in synthetic resins | |
FR1450444A (en) | Resinous compositions, packaging materials coated therewith, and methods for their preparation | |
JPS51146545A (en) | Preparing polyethylene composition filled with inorganic materials | |
JPS51125150A (en) | Fire resistant, thermal resistant synythetic resin materials | |
JPS53129292A (en) | Curing of caking agent | |
JPS51130447A (en) | Thermoplastic resin compositions | |
JPS5228538A (en) | Process for preparing thermoplastic resin compositions containing inor ganic fillers | |
JPS51137726A (en) | Coating materials |