A method of preparing antimicrobial 3D-printed material with antimicrobial agents integrated with the 3D-printed material. The 3D-printed material fabricated with the method of the present disclosure includes antimicrobial agent (s) fully integrated throughout the product and display antimicrobial effect throughout the product, which is resistant to daily wear and tear.

A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of an ethylene-propylene block copolymer; approximately 0.3-5 parts by weight of metal phosphinate compound; approximately 0.5-5 parts by weight of a phosphorus-nitrogen-based retardant; and approximately 0.01-0.2 parts by weight of a bromine-based retardant. The thermoplastic resin composition has excellent flame retardancy, impact resistance, and the like.

A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of an ethylene-propylene block copolymer; approximately 0.3-5 parts by weight of metal phosphinate compound; approximately 0.5-5 parts by weight of a phosphorus-nitrogen-based retardant; and approximately 0.01-0.2 parts by weight of a bromine-based retardant. The thermoplastic resin composition has excellent flame retardancy, impact resistance, and the like.

A flame-retardant resin composition, comprising the following components (A) to (D), wherein the content of the component (B) is 1 part by mass or more and 30 parts by mass or less based on 100 parts by mass of the component (A), the content of the component (C) is 1.5 parts by mass or more and 10 parts by mass or less based on 100 parts by mass of the component (A), and the content of the component (D) is 1 part by mass or more and 10 parts by mass or less based on 100 parts by mass of the component (A): (A) polypropylene (B) a brominated flame-retardant having isocyanurate structure (C) a pigment (D) a flame-retardant synergist

A flame-retardant resin composition, comprising the following components (A) to (D), wherein the content of the component (B) is 1 part by mass or more and 30 parts by mass or less based on 100 parts by mass of the component (A), the content of the component (C) is 1.5 parts by mass or more and 10 parts by mass or less based on 100 parts by mass of the component (A), and the content of the component (D) is 1 part by mass or more and 10 parts by mass or less based on 100 parts by mass of the component (A): (A) polypropylene (B) a brominated flame-retardant having isocyanurate structure (C) a pigment (D) a flame-retardant synergist

The present invention provides a polyolefin resin foam sheet having an area density of 5 g/m.sup.2 or more and 400 g/m.sup.2 or less, and satisfying at least one of the following conditions (1) and (2) in thermogravimetric-mass spectrometry carried out at a heating rate of 10° C.min over an entire measurement temperature range of a 200 to 550° C. measurement temperature, condition (1): a combustion gas generation ratio X defined as a ratio of a peak area value of an amount of a combustion gas P having a mass-to-charge ratio m/z of 55 generated at a measurement temperature of 200 to 364° C. with respect to the peak area value of an amount of the combustion gas P generated over the entire measurement temperature range is 25% or less; and condition (2): a combustion gas generation ratio Y defined as a ratio of a peak area value of an amount of a combustion gas Q having a mass-to-charge ratio m/z of 69 generated at a measurement temperature of 200 to 364° C. with respect to the peak area value of an amount of the combustion gas Q generated over the entire measurement temperature range is 25% or less.

According to the present invention, a polyolefin resin foam sheet can be provided that has a high fire retardancy while maintaining a lightweight property.

The present invention provides a polyolefin resin foam sheet having an area density of 5 g/m.sup.2 or more and 400 g/m.sup.2 or less, and satisfying at least one of the following conditions (1) and (2) in thermogravimetric-mass spectrometry carried out at a heating rate of 10° C.min over an entire measurement temperature range of a 200 to 550° C. measurement temperature, condition (1): a combustion gas generation ratio X defined as a ratio of a peak area value of an amount of a combustion gas P having a mass-to-charge ratio m/z of 55 generated at a measurement temperature of 200 to 364° C. with respect to the peak area value of an amount of the combustion gas P generated over the entire measurement temperature range is 25% or less; and condition (2): a combustion gas generation ratio Y defined as a ratio of a peak area value of an amount of a combustion gas Q having a mass-to-charge ratio m/z of 69 generated at a measurement temperature of 200 to 364° C. with respect to the peak area value of an amount of the combustion gas Q generated over the entire measurement temperature range is 25% or less.

According to the present invention, a polyolefin resin foam sheet can be provided that has a high fire retardancy while maintaining a lightweight property.

In order to satisfy at a high level the golf ball flight and control performances relied on by professional golfers and skilled amateurs, this invention provides a multi-piece solid golf ball G having a core 1, a cover 3 and an intermediate layer 2 therebetween wherein the core is formed of a rubber composition that includes an alcohol having a value obtained by dividing the molecular weight of the alcohol by the number of hydroxyl groups thereon which is 70 or less. Also, letting Hc be the JIS-C hardness at the center of the core, H12 be the JIS-C hardness at a position 12 mm from the core center and Ho be the JIS-C hardness at the surface of the core, the core has a hardness profile in which these hardnesses satisfy fixed relationships defined by specific formulas.

In order to satisfy at a high level the golf ball flight and control performances relied on by professional golfers and skilled amateurs, this invention provides a multi-piece solid golf ball G having a core 1, a cover 3 and an intermediate layer 2 therebetween wherein the core is formed of a rubber composition that includes an alcohol having a value obtained by dividing the molecular weight of the alcohol by the number of hydroxyl groups thereon which is 70 or less. Also, letting Hc be the JIS-C hardness at the center of the core, H12 be the JIS-C hardness at a position 12 mm from the core center and Ho be the JIS-C hardness at the surface of the core, the core has a hardness profile in which these hardnesses satisfy fixed relationships defined by specific formulas.

The invention pertains to a composition based on a fluoroelastomer comprising nitrile or carboxylate-type cure sites and including a curing agent and a Br-containing marker having reactivity towards the said cure-sites, which can be cured so as to deliver cured parts maintaining chemically bound bromine atoms; this material, when submitted to wear/damage would hence release Br-containing contaminants, which can easily spotted via notably an on-line mass spectrometer, so as to monitor and anticipate critical failures of sealing materials based there upon.