Patents by Inventor Mats Tunius
Mats Tunius has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11866619Abstract: The present disclosure relates to polyurethane based switchable adhesives. In at least one embodiment, a switchable adhesive composition comprises an adhesive component, which is formed from at least one isocyanate and a material or materials capable of undergoing cross-linking with isocyanate other than by free radical polymerization.Type: GrantFiled: August 11, 2022Date of Patent: January 9, 2024Assignee: Lumina Adhesives ABInventor: Mats Tunius
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Publication number: 20230110530Abstract: This invention relates to polyurethane-based pressure sensitive adhesive compositions that comprise curable moieties. The adhesive compositions are “switchable” from a tacky state to a non-tacky state by initiating curing of the curable moieties. The adhesive compositions comprise the reaction product of: (A) a polymer component containing at least 2 nucleophilic functional groups containing an active hydrogen atom; and (B) a crosslinking component that is obtainable by reacting a polyisocyanate component and a ompound comprising a functional group that is curable by free-radical polymerisation and further comprising a nucleophilic functional group containing an active hydrogen atom.Type: ApplicationFiled: February 25, 2021Publication date: April 13, 2023Inventors: Mats Tunius, Niklas Bosaeus
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Publication number: 20220380646Abstract: The present disclosure relates to polyurethane based switchable adhesives. In at least one embodiment, a switchable adhesive composition comprises an adhesive component, which is formed from at least one isocyanate and a material or materials capable of undergoing cross-linking with isocyanate other than by free radical polymerization.Type: ApplicationFiled: August 11, 2022Publication date: December 1, 2022Inventor: Mats Tunius
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Patent number: 11414576Abstract: Switchable adhesive compositions are disclosed comprising an adhesive component, which is formed from a material or materials capable of undergoing cross-linking with isocyanale other than by free radical polymerisation and at least one isocyanate having an average of more than one isocyanate functions, unsaturated curable molecules mixed in or partially bound in with the adhesive component, or unsaturated curable moieties fully bound in to the material or materials capable of undergoing cross-linking with isocyanate, and a photoinitiator. The adhesive composition forms a tacky gel-like pressure sensitive adhesive that is capable of moulding to a substrate, and upon activation of the photoinitiator the curable molecules or moieties cross-link to form a dense 3-dimensional network through the adhesive component which causes the composition to become less tacky and to form an elastic film with reduced peel strength.Type: GrantFiled: February 5, 2016Date of Patent: August 16, 2022Assignee: Lumina Adhesives ABInventor: Mats Tunius
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Patent number: 10703942Abstract: Low cytotoxicity compositions are disclosed, most particularly for use in adhesive medical products such as wound dressings (100) and medical skin coverings including surgical incision drapes, bacterial barriers without a wound pad for covering wounds and skin closure products. Methods of treatment are also disclosed that use the adhesive medical products, for example on patients with an injury or a long-term medical condition requiring repeated application of dressings, on patients undergoing surgery, on patients after surgery and/or injury requiring a skin covering, and skin closure methods.Type: GrantFiled: March 5, 2015Date of Patent: July 7, 2020Assignee: LUMINA ADHESIVES ABInventor: Mats Tunius
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Publication number: 20180030321Abstract: Switchable adhesive compositions are disclosed comprising an adhesive component, which is formed from a material or materials capable of undergoing cross-linking with isocyanale other than by free radical polymerisation and at least one isocyanate having an average of more than one isocyanate functions, unsaturated curable molecules mixed in or partially bound in with the adhesive component, or unsaturated curable moieties fully bound in to the material or materials capable of undergoing cross-linking with isocyanate, and a photoinitiator. The adhesive composition forms a tacky gel-like pressure sensitive adhesive that is capable of moulding to a substrate, and upon activation of the photoinitiator the curable molecules or moieties cross-link to form a dense 3-dimensional network through the adhesive component which causes the composition to become less tacky and to form an elastic film with reduced peel strength.Type: ApplicationFiled: February 5, 2016Publication date: February 1, 2018Inventor: Mats Tunius
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Patent number: 9796887Abstract: The present invention provides switchable adhesives comprising a mixture, in proportions by weight, of 20% to 98% of an adhesive, 2% to 80% of curable molecules and 0.05% to 10% of photoinitiator in which the weight proportion of the adhesive is calculated on the basis of its dry weight and wherein the adhesive includes an internal cross-linker for cross-linking the adhesive during drying to provide a cohesive strength of between 5 and 100 N/12.7×12.7 mm measured according to FINAT test method No. 18. Preferably, the adhesive and curable molecules are mutually soluble when dry, or the curable molecules and adhesive may be uniformly dispersed in each other. Preferably the amount of adhesive in the mixture is in the range 40% to 98% by weight, more preferably 60% to 95% by weight, even more preferably 70% to 85% by weight. Preferably the proportion of curable molecules in the mixture ranges from 2% to 60% by weight, more preferably 5% to 40% by weight, even more preferably 15% to 30% by weight.Type: GrantFiled: April 21, 2015Date of Patent: October 24, 2017Assignee: Lumina Adhesives ABInventor: Mats Tunius
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Publication number: 20170051189Abstract: Low cytotoxicity compositions are disclosed, most particularly for use in adhesive medical products such as wound dressings (100) and medical skin coverings including surgical incision drapes, bacterial barriers without a wound pad for covering wounds and skin closure products. Methods of treatment are also disclosed that use the adhesive medical products, for example on patients with an injury or a long-term medical condition requiring repeated application of dressings, on patients undergoing surgery, on patients after surgery and/or injury requiring a skin covering, and skin closure methods.Type: ApplicationFiled: March 5, 2015Publication date: February 23, 2017Inventor: Mats Tunius
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Publication number: 20160312087Abstract: The present invention provides switchable adhesives comprising a mixture, in proportions by weight, of 20% to 98% of an adhesive, 2% to 80% of curable molecules and 0.05% to 10% of photoinitiator in which the weight proportion of the adhesive is calculated on the basis of its dry weight and wherein the adhesive includes an internal cross-linker for cross-linking the adhesive during drying to provide a cohesive strength of between 5 and 100 N/12.7×12.7 mm measured according to FINAT test method No. 18. Preferably, the adhesive and curable molecules are mutually soluble when dry, or the curable molecules and adhesive may be uniformly dispersed in each other. Preferably the amount of adhesive in the mixture is in the range 40% to 98% by weight, more preferably 60% to 95% by weight, even more preferably 70% to 85% by weight. Preferably the proportion of curable molecules in the mixture ranges from 2% to 60% by weight, more preferably 5% to 40% by weight, even more preferably 15% to 30% by weight.Type: ApplicationFiled: April 21, 2015Publication date: October 27, 2016Inventor: Mats Tunius
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Patent number: 9040076Abstract: The present invention provides switchable adhesives comprising a mixture, in proportions by weight, of 20% to 98% of an adhesive, 2% to 80% of curable molecules and 0.05% to 10% of photoinitiator in which the weight proportion of the adhesive is calculated on the basis of its dry weight and wherein the adhesive includes an internal cross-linker for cross-linking the adhesive during drying to provide a cohesive strength of between 5 and 100 N/12.7×12.7 mm measured according to FINAT test method No. 18. Preferably, the adhesive and curable molecules are mutually soluble when dry, or the curable molecules and adhesive may be uniformly dispersed in each other. Preferably the amount of adhesive in the mixture is in the range 40% to 98% by weight, more preferably 60% to 95% by weight, even more preferably 70% to 85% by weight. Preferably the proportion of curable molecules in the mixture ranges from 2% to 60% by weight, more preferably 5% to 40% by weight, even more preferably 15% to 30 by weight.Type: GrantFiled: March 31, 2011Date of Patent: May 26, 2015Assignee: Lumina Adhesives ABInventor: Mats Tunius
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Patent number: 8697932Abstract: Switchable adhesives comprising a mixture, in proportions by weight, of 20% to 98% of an adhesive, 2% to 80% of curable molecules and 0.05% to 10% of photoinitiator. Preferably, the adhesive and curable molecules are mutually soluble when dry or the curable molecules and adhesive may be uniformly dispersed in each other. Preferably the amount of adhesive in the mixture is in the range 40% to 98% by weight, more preferably 60% to 95% by weight, even more preferably 70% to 85% by weight. Preferably the proportion of curable molecules in the mixture ranges from 2% to 60% by weight, more preferably 5% to 40% by weight, even more preferably 15% to 30% by weight. Preferably, the photoinitiator is present in the mixture in the proportions 0.5% to 5% by weight, more preferably 1% to 3% by weight. Such switchable adhesives are useful in medical dressings and other removable sheet products, and may be simply prepared by stirring the adhesive, the curable molecules and the photoinitiator together at room temperature.Type: GrantFiled: September 24, 2009Date of Patent: April 15, 2014Assignee: Lumina Adhesives ABInventor: Mats Tunius
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Publication number: 20130017246Abstract: The present invention provides switchable adhesives comprising a mixture, in proportions by weight, of 20% to 98% of an adhesive, 2% to 80% of curable molecules and 0.05% to 10% of photoinitiator in which the weight proportion of the adhesive is calculated on the basis of its dry weight and wherein the adhesive includes an internal cross-linker for cross-linking the adhesive during drying to provide a cohesive strength of between 5 and 100 N/12.7×12.7 mm measured according to FINAT test method No. 18. Preferably, the adhesive and curable molecules are mutually soluble when dry, or the curable molecules and adhesive may be uniformly dispersed in each other. Preferably the amount of adhesive in the mixture is in the range 40% to 98% by weight, more preferably 60% to 95% by weight, even more preferably 70% to 85% by weight. Preferably the proportion of curable molecules in the mixture ranges from 2% to 60% by weight, more preferably 5% to 40% by weight, even more preferably 15% to 30 by weight.Type: ApplicationFiled: March 31, 2011Publication date: January 17, 2013Applicant: LUMINA ADHESIVES ABInventor: Mats Tunius
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Publication number: 20110224593Abstract: The present invention provides switchable adhesives comprising a mixture, in proportions by weight, of 20% to 98% of an adhesive, 2% to 80% of curable molecules and 0.05% to 10% of photoinitiator. Preferably, the adhesive and curable molecules are mutually soluble when dry, or the curable molecules and adhesive may be uniformly dispersed in each other. Preferably the amount of adhesive in the mixture is in the range 40% to 98% by weight, more preferably 60% to 95% by weight, even more preferably 70% to 85% by weight. Preferably the proportion of curable molecules in the mixture ranges from 2% to 60% by weight, more preferably 5% to 40% by weight, even more preferably 15% to 30% by weight. Preferably, the photoinitiator is present in the mixture in the proportions 0.5% to 5% by weight, more preferably 1% to 3% by weight.Type: ApplicationFiled: September 24, 2009Publication date: September 15, 2011Applicant: LUMINA ADHESIVESInventor: Mats Tunius
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Patent number: 6102526Abstract: In an image recording method, the toner particles are preferably obtained by microencapsulation techniques. The techniques form a dispersion of a core material in a medium containing the shell material. The shell material is deposited upon the surface of the core material to form the capsules. The capsules are hardened to prevent their agglomeration. The capsules are then recovered. Preferably, the continuous phase is normally a solution of the shell material. The core structure advantageously comprises a colorant and at least one additive, such as, for example, a resin binder.Type: GrantFiled: April 3, 1998Date of Patent: August 15, 2000Assignee: Array Printers ABInventor: Mats Tunius