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EP0155763A2
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Method of blow-moulding a biaxially oriented polyethylene terephthalate resin bottle-shaped container
Assignee: Yoshino Kogyosho Co Ltd
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Filing: 1985-02-14
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Granted: —
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Expires: 2005-02-14
Abstract
Abstract Biaxially-oriented PET resin bottle-shaped container is blow-moulded by (a) heating a preform at 100-120 deg.C; (b) biaxial-orientation blow moulding the preform in a prim. blowing mould heated at 110-230 deg.C to form a prim. intermediate moulded bottle-shaped piece; (c) heating the prim. intermediate moulded bottle-shaped piece at 130-255 deg.C to form a sec. intermediate moulded bottle-shaped piece; and (d) biaxial-orientation blow-moulding the sec. intermediate moulded bottle-shaped piece in a sec. blowing mould heated at 100-150 deg.C to form a bottle-shaped container.
Inventors
- 👤 Hiroaki Sugiura
- 👤 Fuminori Tanaka
- 👤 Daisuke Uesugi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 21:14
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/08; B29C49/16; B29C49/42; B29C49/64; B29C49/6409; B29C49/6418; B29C49/642; B29C49/6472; B29C49/78; B29C49/786; B29C2049/7861; B29C2049/7862; B29C2049/7864; B29C2049/78645; B29C2049/7868; B29C2949/00; B29C2949/07; B29C2949/0715; B29C49/02; B29C49/06; B29C49/18; B29C61/00; B29C61/02; B29K; B29K2067/00; B29K2995/00; B29K2995/0012; B29K2995/0017; B29K2995/0037; B29K2995/005; B29K2995/0053
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
A method of blow-molding a biaxially-oriented polyethylene terephthalate resin bottle-shaped container comprising the steps of: (a) heating a preform at 100° to 120°C; (b) biaxial-orientation blow molding-said preform in a primary blowing mold heated at 110° to 230°C to form a primary intermediate molded bottle-shaped piece; (c) heating said primary intermediate molded bottle-shaped piece at 130° to 255°C to from a secondary intermediate molded bottle-shaped piece ; and (d) biaxial-orientation blow-molding said secondary intermediate molded bottle-shaped piece in a secondary blowing mold heated at 100° to 150°C to form a bottle-shaped container.
Claim 2
Independent Claim
92 words
A method of blow-molding a biaxially-oriented polyethylene terephthalate resin bottle-shaped container comprising the steps of: (a) heating a preform at 100° to 120°C; (b) biaxial-orientation blow molding-said preform in a primary blowing mold heated at 110° to 230°C to form a primary intermediate molded bottle-shaped piece; (c) heating said primary intermediate molded bottle-shaped piece at 130° to 255°C to from a secondary intermediate molded bottle-shaped piece ; and (d) biaxial-orientation blow-molding said secondary intermediate molded bottle-shaped piece in a secondary blowing mold heated at 100° to 150°C to form a bottle-shaped container.
Claim 3
Independent Claim
102 words
A method of blow-molding a biaxially-oriented polyethylene terephthalate resin bottle-shaped container comprising the steps of: (a) heating a preform at 100° to 120°C; (b) biaxial-orientation blow molding said preform in a primary blowing mold heated at 110° to 230°C to form a primary intermediate molded bottle-shaped piece; (c) heating said primary intermediate molded bottle-shaped piece at a temperature which is 20° or higher than the primay blowing mold temperature to form a secondary intermediate molded bottle-shaped piece; and (d) biaxial-orientation blow-molding said secondary intermediate molded bottle-shaped piece in a secondary blowing mold heated at 100° to 150°C to form a bottle-shaped container.
Claim 4
Independent Claim
102 words
A method of blow-molding a biaxially-oriented polyethylene terephthalate resin bottle-shaped container comprising the steps of: (a) heating a preform at 100° to 120°C; (b) biaxial-orientation blow molding said preform in a primary blowing mold heated at 110° to 230°C to form a primary intermediate molded bottle-shaped piece; (c) heating said primary intermediate molded bottle-shaped piece at a temperature which is 20° or higher than the primay blowing mold temperature to form a secondary intermediate molded bottle-shaped piece; and (d) biaxial-orientation blow-molding said secondary intermediate molded bottle-shaped piece in a secondary blowing mold heated at 100° to 150°C to form a bottle-shaped container.
Claim 5
Dependent Claim
33 words
The method of claim 1, wherein the orientation-molded portion of said secondary intermediate molded bottle-shaped piece is substantially the same size as or slightly smaller than the orientation-molded portion of said bottle-shaped container.
Claim 6
Dependent Claim
54 words
The method of claim 1, wherein said preform is orientation area magnified 5 to 13 times to form said primary intermediate molded bottle-shaped piece and wherein said secondary blowing mold has a mold size equal to or slightly smaller than said secondary intermediate molded bottle-shaped piece and smaller than said primary blowing mold size.
Claim 7
Dependent Claim
23 words
The method of claim 1, wherein said preform has a neck portion and a body portion, said body portion having a dish shape.
Claim 8
Dependent Claim
25 words
The method of claim 5, wherein said neck portion of said preform is theremally crystallized before said preform is blow-molded in said primary blowing mold.
Claim 9
Dependent Claim
28 words
The method of claim 1, wherein said primary intermediate molded bottle shaped piece is heated in said primary blowing mold to from said secondary intermediate moded bottle-shaped piece.
References Cited (Backward Citations)
No citation records indexed.
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