# US 12,214,953 B2 · Insulating liner > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,953 B2 - Document ID: US12214953B2 - Status: Granted - Kind: B2 - Application number: 18/639,833 - Filed: 2024-04-18 - Published: 2024-08-08 - Granted: 2025-02-04 - Earliest claimed: 2022-11-14 - Assignees: Biochill Pty Limited - Applicants: Biochill Pty Limited - Inventors: Bernadette Scarfe - Web page: https://patentgrep.com/patent/US12214953B2 ## CPC - B65D 81/3823: {formed of different materials, e.g. laminated or foam filling between walls} - B65D 81/386: {formed of corrugated material} - B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12} - B32B 3/28: characterised by a layer comprising a deformed thin sheet {, i.e. the layer having its entire thickness deformed out of the plane}, e.g. corrugated, crumpled (B32B29/08 takes precedence) - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 15/12: of paper or cardboard - B32B 27/10: of paper or cardboard - B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} - B32B 29/005: {next to another layer of paper or cardboard layer} - B32B 29/007: {next to a foam layer} - B32B 29/08: Corrugated paper or cardboard - B65D 25/04: Partitions - B65D 65/403: {with at least one corrugated layer} - B65D 81/3897: {formed of different materials, e.g. laminated or foam filling between walls} - B32B 2250/26: All layers being made of paper or paperboard - B32B 2307/304: Insulating - B32B 2307/718: Weight, e.g. weight per square meter - B32B 2307/7246: Water vapor barrier - B32B 2307/7265: Non-permeable - B32B 2307/7376: Thickness - B32B 2439/62: Boxes, cartons, cases - B32B 2553/00: Packaging equipment or accessories not otherwise provided for - 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 - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract Thermal storage containers for storing or transporting thermally sensitive materials are provided. The containers make use of a thermally insulating liner composed of one or more perforated corrugated cardboard layers sealed within a sealing film. The thermally insulating liners possess excellent thermal insulation properties and may be fully recyclable. ## Claims ### Claim 1 A thermally insulating liner comprising one or more layers of perforated corrugated cardboard stacked to form an insulating pad and an outer sealing film covering the insulating pad, wherein a layer of the perforated corrugated cardboard is more compressible in a direction perpendicular to a major surface of the perforated corrugated cardboard compared to a layer of non-perforated corrugated cardboard from which the perforated corrugated cardboard is derived; and wherein a layer of perforated corrugated cardboard comprises slits which penetrate the major surfaces of the layer. ### Claim 2 (depends on 1) The thermally insulating liner according to claim 1, wherein the one or more layers of perforated corrugated cardboard are derived from one or more of single or multiple fluted corrugated cardboard. ### Claim 3 (depends on 1) The thermally insulating liner according to claim 1, wherein the one or more layers of perforated corrugated cardboard are derived from one or more of single fluted, double fluted, and triple fluted corrugated cardboard. ### Claim 4 (depends on 1) The thermally insulating liner according to claim 1, wherein perforated corrugated cardboard is produced on a commercial cardboard perforating machine. ### Claim 5 (depends on 1) The thermally insulating liner according to claim 1, wherein a layer of perforated corrugated cardboard has an areal weight from about 100 g/m2 to about 300 g/m2. ### Claim 6 (depends on 1) The thermally insulating liner according to claim 1, wherein a layer of perforated corrugated cardboard has a thickness from about 0.5 mm to about 10 mm. ### Claim 7 (depends on 1) The thermally insulating liner according to claim 1, wherein the insulating pad has a thickness from about 10 mm to about 150 mm. ### Claim 8 (depends on 1) The thermally insulating liner according to claim 1, wherein the insulating pad comprises at least two layers of perforated corrugated cardboard. ### Claim 9 (depends on 1) The thermally insulating liner according to claim 1, wherein the insulating pad comprises at least two layers of perforated corrugated cardboard derived from corrugated cardboard having different flute designs. ### Claim 10 (depends on 1) The thermally insulating liner according to claim 1, wherein a layer of perforated corrugated cardboard comprises regions across the major outside surfaces of the layer which are raised and lowered relative to each other. ### Claim 11 (depends on 1) The thermally insulating liner according to claim 1, wherein a layer of perforated corrugated cardboard has a web like structure. ### Claim 12 (depends on 1) The thermally insulating liner according to claim 1, wherein the insulating pad is compressible in a direction perpendicular to a major surface of the pad. ### Claim 13 (depends on 1) The thermally insulating liner according to claim 1, wherein the insulating pad is more compressible in a direction perpendicular to a major surface of the insulating pad compared to an insulating pad comprising non-perforated corrugated cardboard. ### Claim 14 (depends on 1) The thermally insulating liner according to claim 1, wherein adjacent layers of perforated corrugated cardboard interlock with one another. ### Claim 15 (depends on 1) The thermally insulating liner according to claim 1, wherein pockets of air are located between the perforated corrugated cardboard layers. ### Claim 16 (depends on 1) The thermally insulating liner according to claim 1, wherein the thickness of the insulating pad is at least 10% less than the thickness of an equivalent insulating pad constructed from non-perforated corrugated cardboard. ### Claim 17 (depends on 1) The thermally insulating liner according to claim 1, wherein the outer sealing film comprises a moisture proof or water proof sealing film. ### Claim 18 (depends on 1) The thermally insulating liner according to claim 1, wherein the insulating pad has an R value less than 0.52 m2·K/W per 2.54 cm. ### Claim 19 (depends on 1) A thermal storage container for storing or transporting thermally sensitive articles within a predefined temperature range comprising: an outer structure comprising one or more walls defining an inner container space, said inner container space comprising a thermally sensitive article location space; one or more thermally insulating liners according to claim 1, positioned within the inner container space, and configured to cover at least part of one or more inner surfaces of the walls of the outer structure. ### Claim 20 (depends on 19) The thermal storage container according to claim 19, further comprising a source of cooling located between the thermally insulating liner and the thermally sensitive article location space. ### Claim 21 (depends on 19) The thermal storage container according to claim 19, wherein the outer structure comprises a box, a pouch or an envelope. ### Claim 22 (depends on 19) The thermal storage container according to claim 19, wherein the outer structure has a wall thickness from about 1 mm to about 10 mm. ### Claim 23 (depends on 19) The thermal storage container according to claim 19 further comprising one or more slotted dividers located within the inner container space and configured to separate the cooling source from the thermally sensitive article location space. ### Claim 24 (depends on 23) The thermal storage container according to claim 23, wherein the one or more slotted dividers enable fluid communication between the cooling source and the thermally sensitive article location space. ### Claim 25 (depends on 23) The thermal storage container according to claim 23, wherein the one or more slotted dividers independently comprise one or more than one slots. ### Claim 26 (depends on 23) The thermal storage container according to claim 23, wherein the one or more slotted dividers comprise corrugated cardboard. ### Claim 27 (depends on 19) The thermal storage container according to claim 19, wherein the thermally sensitive article comprises one or more of pharmaceuticals, vaccines, biologics, laboratory samples, diagnostic materials, chemicals, food, and beverages. ### Claim 28 (depends on 19) A method of storing or transporting thermally sensitive articles within a predefined temperature range, the method comprising placing one or more temperature sensitive articles in the article location space of the thermal storage container according to claim 19. ### Claim 29 (depends on 28) The method according to claim 28, wherein the predefined temperature range is from about 2° C. to about 8° C. ### Claim 30 (depends on 28) The method according to claim 28, wherein the predefined temperature range is from about −30° C. to about 25° C.