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1. KR1020060088550 - THICK FLAT-PLATE MOLDED PRODUCT AND METHOD OF PRODUCING THE SAME

官庁 大韓民国
出願番号 1020067006171
出願日 29.03.2006
公開番号 1020060088550
公開日 04.08.2006
公報種別 A
IPC
B29C 45/73
B処理操作;運輸
29プラスチックの加工;可塑状態の物質の加工一般
Cプラスチックの成形または接合;他に分類されない可塑状態の材料の成形;成形品の後処理,例.補修
45射出成形,即ち所要量の成形材料をノズルを介して閉鎖型内へ流入させるもの;そのための装置
17構成部品,細部または付属装置;補助操作
72加熱または冷却
73金型の
B29C 45/37
B処理操作;運輸
29プラスチックの加工;可塑状態の物質の加工一般
Cプラスチックの成形または接合;他に分類されない可塑状態の材料の成形;成形品の後処理,例.補修
45射出成形,即ち所要量の成形材料をノズルを介して閉鎖型内へ流入させるもの;そのための装置
17構成部品,細部または付属装置;補助操作
26金型
37型キャビティ壁
CPC
B29C 45/73
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
72Heating or cooling
73of the mould
B29C 45/372
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
26Moulds
37Mould cavity walls ; , i.e. the inner surface forming the mould cavity, e.g. linings
372provided with means for marking or patterning, e.g. numbering articles
B29C2045/7343
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
72Heating or cooling
73of the mould
7343heating or cooling different mould parts at different temperatures
B29L2011/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2011Optical elements, e.g. lenses, prisms
出願人 ZEON CORPORATION
니폰 제온 가부시키가이샤
発明者 HAYASHI MASAHIKO
하야시 마사히코
UEKI KAZUNORI
우에키 가즈노리
NARUSE FUMIHIRO
나루세 후미히로
代理人 김창세
優先権情報 JP-P-2003-00340603 30.09.2003 JP
発明の名称
(EN) THICK FLAT-PLATE MOLDED PRODUCT AND METHOD OF PRODUCING THE SAME
(KO) 후물 평판 성형품 및 그 제조 방법
要約
(EN)

A rectangular thick flat-plate molded product, produced by injection molding, including a thermoplastic resin and a method of producing the molded product are provided. In the molded product, the difference between the maximum thickness and the minimum thickness is equal to or smaller than 3% of the thickness of the central portion, the thickness from the central portion to a peripheral edge is uniform and even, a fine recess-ridge pattern on the surface of a metal die can be accurately transferred to the product, and the molded product can be suitably used as an optical material. In the method of producing the molded product by injection molding, a metal die is heated so that the temperature of at least a pair of two opposed end sides of a rectangular cavity of the metal die is maintained higher by 2°C or more than the maximum temperature of the central portion of the cavity of the metal die.

© KIPO & WIPO 2007

(KO)
사출 성형법에 의해 제조된 열가소성 수지를 포함하여 이루어지는 직사각형의 후물 평판 성형품에 있어서, 최대 두께와 최소 두께의 차이가 중앙부의 두께의 3% 이하인 것을 특징으로 하는, 중앙부로부터 주연부까지 두께가 균일하여 편차가 없고, 금형 표면의 미세한 요철 모양을 정확하게 전사하여, 광학재료로서 적합하게 사용할 수 있는 후물 평판 성형품, 및 상기 후물 평판 성형품을 사출 성형법에 의해 제조함에 있어서, 사출 성형용 금형의 직사각형의 캐비티의 적어도 한쌍의 대향하는 2개의 단부 변의 온도가 금형의 캐비티의 중앙부의 최고 온도보다도 2℃ 이상 높게 유지되도록 금형을 가열하는 것을 특징으로 하는 후물 평판 성형품의 제조 방법.