# US 2022/0033142 A1 · Container in which inner surface is formed from olefin resin layer

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- Number: US 2022/0033142 A1
- Document ID: US20220033142A1
- Status: Published application
- Kind: A1
- Application number: 17/504,247
- Filed: 2021-10-18
- Published: 2022-02-03
- Earliest claimed: 2015-07-09
- Assignees: Toyo Seikan Group Holdings, Ltd.; Toyo Seikan Co., Ltd.
- Applicants: Toyo Seikan Group Holdings, Ltd.; Toyo Seikan Co., Ltd.
- Inventors: Ikuo Komatsu; Yosuke Akutsu; Keisuke Nyuu; Satomi Ozawa
- Web page: https://patentgrep.com/patent/US20220033142A1

## CPC

- B65D 23/02: Linings or internal coatings
- B29C 49/22: using multilayered preforms or parisons
- B32B 27/08: of synthetic resin
- B32B 27/20: using fillers, pigments, thixotroping agents
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B65D 1/0207: {characterised by material, e.g. composition, physical features}
- B65D 23/04: Means for mixing or for promoting flow of contents (hydro-dynamic means for influencing the flow of liquids F15D)
- B65D 65/40: Applications of laminates for particular packaging purposes {(B65D1/0215, B65D1/28, B65D3/22, B65D5/0281, B65D5/563, B65D9/30, B65D29/02, B65D31/02, B65D75/26, B65D77/2024, B65D81/1275, B65D81/3811, B65D81/3823, B65D81/3834, B65D81/3846, B65D81/3858, B65D81/3874, B65D81/3886, B65D81/3897 take precedence; laminates per se or laminated packages characterised by the composition or)}
- B65D 85/72: for edible or potable liquids, semiliquids, or plastic or pasty materials
- C08K 5/09: Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K 7/26: Silicon- containing compounds
- B29C 49/0005: {characterised by the material}
- B29K 2023/00: Use of polyalkenes {or derivatives thereof} as moulding material
- B29K 2105/0005: {containing compounding ingredients (releasing, lubricating or separating agents B29C33/56, fibers B29K2105/08, B29K2105/12; fillers B29K2105/16, recycled material B29K2105/26)}
- B29K 2509/00: Use of inorganic materials not provided for in groups {B29K2503/00 - B29K2507/00,} as filler
- B32B 2250/05: 5 or more layers
- B32B 2250/246: All polymers belonging to those covered by groups B32B27/32 and B32B27/30
- B32B 2264/102: Oxide or hydroxide
- B32B 2272/00: Resin or rubber layer comprising scrap, waste or recycling material
- B32B 2305/026: Porous
- B32B 2307/538: Roughness
- B32B 2307/746: Slipping, anti-blocking, low friction
- B32B 2323/046: LDPE, i.e. low density polyethylene
- B32B 2439/60: Bottles
- B32B 2439/70: Food packaging
- B65D 25/14: Linings or internal coatings (of containers made by folding or erecting blanks made of paper B65D5/56 {; linings for domestic water storage heaters F24H1/183})
- C08K 2201/005: Additives being defined by their particle size in general
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- 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 (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

## Abstract

A method of producing a directly blow-formed container. The method includes subjecting a multilayered parison having an inner surface formed of an olefin resin to direct blow forming, the olefin resin containing (i) an organic bleeding lubricant having a melting point of not higher than 50° C. in an amount of 5 to 10% by mass, and (ii) a high silica zeolite having a silica/alumina mole ratio of not less than 80 in an amount of 0.2 to 3.0% by mass.

## Claims

### Claim 1

A method of producing a directly blow-formed container which comprises subjecting a multilayered parison having an inner surface formed of an olefin resin to direct blow forming, said olefin resin comprising (i) an organic bleeding lubricant having a melting point of not higher than 50° C. in an amount of 5 to 10% by mass, and (ii) a high silica zeolite having a silica/alumina mole ratio of not less than 80 in an amount of 0.2 to 3.0% by mass.

### Claim 2 (depends on 1)

The method as set forth in claim 1, wherein the high silica zeolite has a mean particle size of 0.1 to 4.9 μm.

### Claim 3 (depends on 2)

The method as set forth in claim 2, wherein the high silica zeolite has a mean particle size of 0.5 to 4.5 μm.

### Claim 4 (depends on 1)

The method as set forth in claim 1, wherein the organic bleeding lubricant is a saturated or unsaturated fatty acid.

### Claim 5 (depends on 1)

A directly blow-formed container obtained by the method of claim 1.