# US 10,766,235 B2 · Reinforced film for unitization of goods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,766,235 B2 - Document ID: US10766235B2 - Status: Granted - Kind: B2 - Application number: 15/315,291 - Filed: 2015-06-26 - Published: 2018-08-16 - Granted: 2020-09-08 - Earliest claimed: 2014-06-30 - Assignees: Megaplast S.A. Packaging Materials Industry - Applicants: Megaplast S.A. Packaging Materials Industry - Inventors: Konstantinos G. Gatos; Anthony G. Karandinos - Web page: https://patentgrep.com/patent/US10766235B2 ## CPC - B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} - B32B 5/022: {Non-woven fabric} - B32B 27/08: of synthetic resin - B32B 27/12: next to a fibrous or filamentary layer - B32B 27/20: using fillers, pigments, thixotroping agents - B32B 27/34: comprising polyamides - B32B 27/36: comprising polyesters - B32B 2264/102: Oxide or hydroxide - B32B 2264/104: Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles - B32B 2307/51: Elastic - B32B 2553/00: Packaging equipment or accessories not otherwise provided for - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract The present invention relates to a non-perforated reinforced stretch film comprising: a base film which has a thickness in the range of 3 μm to 18 μm, and 5 to 100 reinforcing strips fixed on at least one surface of said base film, wherein the width of each reinforcing strip is, independently, in the range of 1 mm to 17 mm. ## Claims ### Claim 1 A non-perforated reinforced stretch film consisting of: a base film which has a thickness in the range of 3 μm to 18 μm, and 5 to 100 reinforcing strips fixed on at least one surface of said base film, wherein the width of each reinforcing strip is, independently, in the range of 1 mm to 17 mm. ### Claim 2 (depends on 1) A film according to claim 1, wherein the distance between adjacent reinforcing strips is 0.5% to 40% of the width of the film. ### Claim 3 (depends on 1) A film according to claim 1, wherein the thickness of the base film is less than 15 μm. ### Claim 4 (depends on 3) A film according to claim 3, wherein the thickness of the base film is from 3 μm to 9 μm. ### Claim 5 (depends on 1) A film according to claim 1, wherein the number of reinforcing strips on said film is 5 to 80. ### Claim 6 (depends on 1) A film according to claim 1, wherein the width of each reinforcing strip is, independently, in the range of 1 mm to 15 mm. ### Claim 7 (depends on 1) A film according to claim 1, wherein the width of said reinforced stretch film is from 30 cm to 190 cm. ### Claim 8 (depends on 1) A film according to claim 1, wherein the weight of said reinforced stretch film is less than 22 g/m2. ### Claim 9 (depends on 1) A film according to claim 1, wherein the ratio of the width over the height of each reinforcing strip is 10 to 3000. ### Claim 10 (depends on 1) A film according to claim 1, wherein at least one reinforcing strip is longitudinal. ### Claim 11 (depends on 1) A film according to claim 1, wherein all reinforcing strips are longitudinal and continuous. ### Claim 12 (depends on 1) A film according to claim 1, wherein at least one reinforcing strip is flat. ### Claim 13 (depends on 1) A film according to claim 1, wherein at least one reinforcing strip is folded about its longitudinal axis. ### Claim 14 (depends on 1) A film according to claim 1, wherein at least one reinforcing strip contains wrinkles and/or corrugations. ### Claim 15 (depends on 1) A film according to claim 1, wherein the area percentage of stretch film covered by said reinforcing strips over said film is 0.5% to 70%. ### Claim 16 (depends on 1) A film according to claim 1, wherein the thickness of each reinforcing strip is, independently, in the range 3 μm to 90 μm. ### Claim 17 (depends on 1) A film according to claim 1, wherein the percentage of weight of the plurality of reinforcing strips over the overall weight of the reinforced stretch film is 60% or lower. ### Claim 18 (depends on 1) A film according to claim 1, wherein the base film is a multilayer base film. ### Claim 19 (depends on 1) A film according to claim 1, wherein the reinforced stretch film is hemmed. ### Claim 20 (depends on 1) A film according to claim 1, wherein the reinforced stretch film is 10% to 250% pre-stretched prior handling. ### Claim 21 (depends on 1) A film according to claim 1, wherein the reinforced stretch film is pre-stretched prior to handling and the stretch film has low remaining stretch-ability. ### Claim 22 (depends on 1) A film according to claim 1, wherein the reinforced stretch film is provided on a roll. ### Claim 23 (depends on 1) A film according to claim 1, wherein the distance between adjacent reinforcing strips is 1% to 35% of the width of the film. ### Claim 24 (depends on 1) A film according to claim 1, wherein the distance between adjacent reinforcing strips is 1% to 25% of the width of the film. ### Claim 25 (depends on 1) A film according to claim 1, wherein the distance between adjacent reinforcing strips is 1% to 15% of the width of the film. ### Claim 26 (depends on 1) A film according to claim 1, wherein the thickness of the base film is less than 12 μm. ### Claim 27 (depends on 1) A film according to claim 1, wherein the thickness of the base film is less than 10 μm. ### Claim 28 (depends on 1) A film according to claim 1, wherein the number of reinforcing strips on said film is 10 to 40. ### Claim 29 (depends on 1) A film according to claim 1, wherein the number of reinforcing strips on said film is 15 to 30. ### Claim 30 (depends on 1) A film according to claim 1, wherein the width of each reinforcing strip is, independently, in the range of 1 mm to 12 mm. ### Claim 31 (depends on 1) A film according to claim 1, wherein the width of each reinforcing strip is, independently, in the range of 2 mm to 10 mm. ### Claim 32 (depends on 1) A film according to claim 1, wherein the width of said reinforced stretch film is from 100 cm to 190 cm. ### Claim 33 (depends on 1) A film according to claim 1, wherein the width of said reinforced stretch film is from 30 cm to 110 cm. ### Claim 34 (depends on 1) A film according to claim 1, wherein the weight of said reinforced stretch film is less than 20 g/m2. ### Claim 35 (depends on 1) A film according to claim 1, wherein the weight of said reinforced stretch film is less than 18 g/m2. ### Claim 36 (depends on 1) A film according to claim 1, wherein the ratio of the width over the height of each reinforcing strip is 20 to 2000. ### Claim 37 (depends on 1) A film according to claim 1, wherein the ratio of the width over the height of each reinforcing strip is 30 to 1000. ### Claim 38 (depends on 1) A film according to claim 1, wherein all reinforcing strips are longitudinal. ### Claim 39 (depends on 1) A film according to claim 1, wherein the area percentage of stretch film covered by said reinforcing strips over said film is 2% to 50%. ### Claim 40 (depends on 1) A film according to claim 1, wherein the area percentage of stretch film covered by said reinforcing strips over said film is 5% to 40%. ### Claim 41 (depends on 1) A film according to claim 1, wherein the area percentage of stretch film covered by said reinforcing strips over said film is 10% to 30%. ### Claim 42 (depends on 1) A film according to claim 1, wherein the thickness of each reinforcing strip is, independently, in the range 4 μm to 50 μm. ### Claim 43 (depends on 1) A film according to claim 1, wherein the percentage of weight of the plurality of reinforcing strips over the overall weight of the reinforced stretch film is in the range 0.5% to 60%. ### Claim 44 (depends on 1) A film according to claim 1, wherein the percentage of weight of the plurality of reinforcing strips over the overall weight of the reinforced stretch film is in the 2% to 40%. ### Claim 45 (depends on 1) A film according to claim 1, wherein the percentage of weight of the plurality of reinforcing strips over the overall weight of the reinforced stretch film is in the range 5% to 30%. ### Claim 46 (depends on 1) A film according to claim 1, wherein the percentage of weight of the plurality of reinforcing strips over the overall weight of the reinforced stretch film is in the range 10% to 20%.