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1. KR1020070121683 - METHOD FOR PRODUCING POLYMER FILM

Office Republic of Korea
Application Number 1020077021546
Application Date 19.09.2007
Publication Number 1020070121683
Publication Date 27.12.2007
Grant Number 1012739920000
Grant Date 12.06.2013
Publication Kind B1
IPC
B29C 41/28
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
41Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
24for making articles of indefinite length
28by depositing flowable material on an endless belt
B29C 41/32
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
41Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
24for making articles of indefinite length
32Making multilayered or multicoloured articles
B29C 41/46
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
41Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
34Component parts, details or accessories; Auxiliary operations
46Heating or cooling
Applicants FUJI FILM CORPORATION
후지필름 가부시키가이샤
Inventors SUZUKI NOBUYOSHI
스즈키 노부요시
TAKEDA RYOU
타케다 료우
Agents 하상구
하영욱
Priority Data JP-P-2005-00088520 25.03.2005 JP
Title
(EN) METHOD FOR PRODUCING POLYMER FILM
(KO) 폴리머 필름의 제조방법
Abstract
(EN)
A casting film (80) having a base layer and one outer layer are formed by co-casting. Viscosity of outer layer dope was at most 40 Pa*s. Just after formation of the casting film (80), the drying air is fed out from an outlet (82a) opening to a belt (73). The temperature and the static pressure are respectively predetermined valued 50-160 degrees Celsius and 50-200 Pa. The first outlet is partitioned by partitioning members, and meshed plates are attached to the partitions confronting to both side edge portions of the casting film (80). Another drying air is fed out from an outlet (83a) in a running direction of the belt (73). The temperature and the wind speed are respectively predetermined valued 50-160 degrees Celsius and 5-20 m/s. The occurrence of unevenness and foaming is reduced and a film excellent in planarity is produced. ©KIPO&WIPO 2008

(KO)
베이스층 및 상기 베이스층상에 노출층을 갖는 캐스팅 필름(80)이 공캐스팅에 의해 형성된다. 노출층 도프의 점도는 40Pa·s이하이었다. 상기 캐스팅 필름(80)의 형성 직후, 건조풍이 상기 벨트로 개방되어 있는 방출구(82a)로부터 방출된다. 온도 및 정압은 각각 소정값 50℃∼160℃ 및 50Pa∼200Pa이다. 상기 제 1 방출구는 구획 부재에 의해 분획되고, 메쉬판은 상기 캐스팅 필름(80)의 양측 가장자리부와 대면하는 구획부에 부착된다. 다른 건조풍이 상기 벨트(73)의 주행 방향으로 방출구(83a)로부터 방출된다. 그 온도 및 풍속은 각각 소정값 50℃∼160℃ 및 5m/s∼20m/s이다. 불균일 및 기포의 발생을 감소시켜 평활성이 우수한 필름이 제조되었다.

Also published as
EP6730003