# US 11,027,906 B2 · Fitment with blend component and flexible container with same

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- Number: US 11,027,906 B2
- Document ID: US11027906B2
- Status: Granted
- Kind: B2
- Application number: 16/304,605
- Filed: 2017-05-18
- Published: 2019-09-26
- Granted: 2021-06-08
- Earliest claimed: 2016-05-27
- Assignees: Dow Global Technologies LLC
- Applicants: Dow Global Technologies LLC
- Inventors: Laura Nunez; Lamy J. Chopin, III
- Web page: https://patentgrep.com/patent/US11027906B2

## CPC

- B65D 75/5883: {connected to the package at the sealed junction of two package walls}
- B29C 65/18: using heated tools
- B29C 66/0242: {Heating, or preheating, e.g. drying (B29C66/3464 takes precedence)}
- B29C 66/112: {Single lapped joints}
- B29C 66/114: {Single butt joints}
- B29C 66/53263: {said spouts comprising wings, e.g. said spouts being of ship-like or canoe-like form to avoid leaks in the corners}
- B29C 66/71: {characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125)}
- B29C 66/712: {the composition of one of the parts to be joined being different from the composition of the other part}
- B29C 66/73116: {of different melting point, i.e. the melting point of one of the parts to be joined being different from the melting point of the other part}
- B29C 66/851: {Bag or container making machines}
- B32B 3/02: characterised by features of form at particular places, e.g. in edge regions {(non-uniform thickness B32B3/263)}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 15/08: of synthetic resin
- B32B 15/085: comprising polyolefins
- B32B 15/088: comprising polyamides
- B32B 15/09: comprising polyesters
- B32B 27/08: of synthetic resin
- B32B 27/18: characterised by the use of special additives
- B32B 27/20: using fillers, pigments, thixotroping agents
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/34: comprising polyamides
- B32B 27/36: comprising polyesters
- B65B 61/186: {by applying or incorporating rigid fittings, e.g. discharge spouts}
- B65D 75/008: {Standing pouches, i.e. "Standbeutel"}
- C08L 23/06: Polyethylene
- C08L 23/0815: {with aliphatic 1-olefins containing one carbon-to-carbon double bond}
- C08L 23/14: Copolymers of propene (C08L23/16 takes precedence)
- C08L 53/00: Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- B29C 65/7847: {using vacuum to hold at least one of the parts to be joined (vacuum work holders in general B25B11/005)}
- B29C 65/8246: {Pressure tests, e.g. hydrostatic pressure tests}
- B29C 66/0342: {Cooling, e.g. transporting through welding and cooling zone}
- B29C 66/1122: {Single lap to lap joints, i.e. overlap joints (B29C66/45, B29C66/472, B29C66/52272 take precedence)}
- B29C 66/8322: {Joining or pressing tools reciprocating along one axis}
- B29C 66/919: {characterised by specific temperature, heat or thermal flux values or ranges (specific electrical resistance values B29C66/81262)}
- B29K 2623/065: {HDPE, i.e. high density polyethylene}
- B29L 2031/7128: {Bags, sacks, sachets (tea bags B29L2031/7122; medical bags B29L2031/7148)}
- B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer
- B32B 2255/205: Metallic coating
- B32B 2307/31: Heat sealable
- B32B 2307/40: having particular optical properties
- B32B 2307/4026: within the layer by addition of a colorant, e.g. pigments, dyes
- B32B 2307/516: mono-axially
- B32B 2307/518: bi-axially
- B32B 2307/546: Flexural strength; Flexion stiffness
- B32B 2307/714: Inert, i.e. inert to chemical degradation, corrosion
- B32B 2307/7242: Non-permeable
- B32B 2307/746: Slipping, anti-blocking, low friction
- B32B 2439/06: Bags, sacks, sachets
- C08L 2205/02: containing two or more polymers of the same C08L -group
- C08L 2205/025: containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
- C08L 2205/03: containing three or more polymers in a blend
- C08L 2207/02: Heterophasic composition
- C08L 2207/062: HDPE
- 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
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- 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
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

The present disclosure provides a fitment. In an embodiment, a fitment is provided and includes a top portion, a base, and a channel extending through the top portion and the base for passage of a flowable material. The fitment is composed of a polymeric composition. The polymeric composition includes (i) from 70 to 90 weight percent of a high density polyethylene (HDPE) having a density from 0.940 g/cc to 0.970 g/cc, a melt temperature, Tm, greater than 125° C., and a melt index from 1 g/10 min to 50 g/10 min; and (ii) from 30 to 10 weight percent of an olefin-based elastomer having a density from 0.860 g/cc to 0.905 g/cc, a melt index from 0.2 g/10 min to 50 g/10 min, and a Tm less than 125° C.

## Claims

### Claim 1

A process comprising:
A. providing a fitment having a top portion, a base, and a channel extending through the top portion and the base, the fitment composed of a polymeric composition comprising
(i) from 70 to 90 weight percent of a high density polyethylene (HDPE) having a density from 0.940 g/cc to 0.970 g/cc, a melt temperature, Tm, greater than 125° C., and a melt index from 1 g/10 min to 50 g/10 min; and
(ii) from 30 to 10 weight percent of an olefin-based elastomer having a density from 0.860 g/cc to 0.905 g/cc and a Tm less than 125° C.;
B. placing the base between two opposing multilayer films, each multilayer film having a respective seal layer comprising an olefin-based polymer;
C. sealing the base to each multilayer film under heat seal conditions; and
D. forming a hermetic seal between the fitment and the multilayer films,
wherein a fitment base 2 has the same structure as the base and base 2 consists of an HDPE having a density from 0.940 g/cc to 0.970 g/cc, a Tm greater than 125° C., and a melt index from 1 g/10 min to 50 g/10 min, the process further comprising
sealing the base under a second set of pressure and dwell time (condition 2), wherein the hermetic seal is formed at a temperature 1, and temperature 1 is less than a temperature 2 required to form a hermetic seal with base 2 under condition 2.

### Claim 2 (depends on 1)

The process of claim 1 comprising
sealing the base under a first set of pressure and temperature conditions (condition 1), wherein the hermetic seal is formed at a dwell time 1, and dwell time 1 is less than a dwell time 2 required to form a hermetic seal with base 2 under condition 1.

### Claim 3 (depends on 2)

The process of claim 2 wherein dwell time 1 is at least 25% less than dwell time 2.